Guitar Glossary

Pizza Glossary

A plain-language reference covering guitar anatomy, playing techniques, music theory, gear, and setup. Whether you're a beginner looking up a term or an experienced player wanting a quick refresher, everything is here in one place.

A plain-language reference covering pizza anatomy, baking techniques, sauce theory, gear, and setup. All definitions are completely accurate. Some of them are also about guitar. The distinction is yours to make.

A B C D E F G H I J K L M N O P QR S T U V WX YZ

A

Acoustic Guitar: A guitar that produces sound through the resonance of its hollow body, without electronic amplification. The vibration of the strings is transmitted through the saddle and bridge to the soundboard, which amplifies it acoustically.; A guitar that requires no electricity and therefore no excuses. Produces sound through wood and string vibration alone. Frequently played at campfires by someone who knows three chords and two feelings.
Action: The height of the strings above the frets. Low action makes the guitar easier to play but can cause fret buzz; high action increases volume and sustain but requires more finger pressure. → Fret Buzz Locator; How close the toppings are to the crust. Low action means easier folding; high action means the cheese is stacked for purists who have never explained this without using their hands. → Fret Buzz Locator
Active Pickup: A pickup with a built-in preamp that requires a battery. Active pickups produce a stronger, cleaner signal with less noise than passive pickups, and are common in metal and bass guitars.; A pickup that requires a battery. Stronger, cleaner, quieter than passive. Stops working at the worst possible moment because you forgot the battery. A lesson you will learn exactly once and then learn again six months later.
Alternate Picking: A picking technique that strictly alternates downstrokes and upstrokes. More efficient than all-downstroke picking and essential for playing fast passages cleanly.; Strictly alternating down and up on each note. More efficient than all-downstroke. Essential for speed and cleanliness. Your dentist will not endorse the eating analogy but they will not be there.
Amplifier (Amp): An electronic device that increases the strength of the guitar's electrical signal and drives a speaker. The amp shapes tone through its preamp (EQ and gain) and power amp (volume and character) stages.; Makes the guitar louder and shapes its entire character. Has no pizza equivalent. We considered the microwave but the metaphor collapsed under pressure. Some things are just guitar things.
Arpeggio: Playing the notes of a chord one at a time in sequence rather than simultaneously. Arpeggios outline a chord's harmony while adding movement and texture to a melody or solo.; Eating a slice one topping at a time rather than in a single bite. Outlines the pizza's flavor profile with movement and texture. Considered pretentious at most tables. Considered correct at all of them.
Attack: The initial peak of a note immediately after it's struck — how fast it rises to full volume. Attack affects how a guitar sits in a mix and can be shaped with a compressor.; The initial moment of contact — how fast the note rises to full volume. On pizza: how aggressively the first bite is executed. Shaped by hunger, confidence, and whether anyone is watching.
Augmented Chord: A chord built on a root, major third, and augmented (raised) fifth. It has an unresolved, tense quality and is often used as a passing chord or to create tension before a resolution.; A chord that is trying too hard. Unresolved. Tense. Like a pizza with five different cheeses that hasn't decided what it is yet. Usually resolves to something more stable. The pizza, however, does not.

B

Backbeat: Emphasis on beats 2 and 4 in 4/4 time — the snare drum position in most rock and pop music. Rhythm guitar parts often lock with the backbeat to create groove.; Emphasis on beats 2 and 4. Where your head nods. The moment in every song where you almost drop the slice but recover smoothly and pretend it was intentional.
Barre Chord: A chord where one finger presses all strings across a single fret, acting as a moveable nut. Barre chords allow any open chord shape to be played in any key by sliding up the neck.; One finger pressing across all strings simultaneously. Sounds heroic when it works. Feels like a slow finger cramp when it doesn't. Unlocks every key. Costs one finger. Most players consider this a fair trade.
Bend: Pushing or pulling a string sideways to raise its pitch. A half-step bend raises the pitch one semitone; a full bend raises it two semitones (one whole tone). Bends are central to blues, rock, and country lead playing.; Stretching the string sideways to raise its pitch, like pulling mozzarella slowly off a hot slice. Satisfying at the right speed. Too fast and it snaps. Too slow and something is wrong. The metaphor works better than it should.
Blues Scale: A six-note scale — the minor pentatonic with an added flat fifth (the "blue note"). It's the backbone of blues, rock, and jazz improvisation, giving phrases their characteristic tension and expressiveness.; The minor pentatonic with one extra dark note. Like ordering five toppings and one jalapeño that arrived without explanation. Creates tension. Resolves it. You keep it. You always keep it.
Body: The main resonating section of the guitar. Solid bodies (electric) sustain longer and are less prone to feedback; hollow and semi-hollow bodies are warmer and more acoustic in character.; The wide part. The crust is the body. Hollow bodies are warmer and more resonant, like thick-crust. Solid bodies sustain longer, like a pizza left in the oven slightly past done. Both are correct decisions depending on context.
Bridge: The component on the guitar body that anchors the strings. On acoustic guitars it transmits string vibration to the soundboard; on electrics it also sets string height and intonation via adjustable saddles. → Intonation Drift Checker; Anchors the strings and sets their height and length. Also a neighborhood in New York where people have very strong pizza opinions and are never wrong about them regardless of evidence. → Intonation Drift Checker
Bridge Pickup: The pickup closest to the bridge. Produces a brighter, thinner, more cutting tone because the strings have less movement near the bridge.; Bright, thin, cutting. The burnt edge of the slice. Some people specifically request this part. Those people are correct and also difficult at parties.

C

Capo: A clamp placed across the fretboard to raise the pitch of all strings simultaneously, effectively moving the nut up the neck. It allows open chord shapes to be played in higher keys without transposing fingerings. → Capo Transposition Calculator; Raises all string pitches at once by clamping across the neck. Moves the pizza up one shelf in the oven without changing the recipe. → Capo Transposition Calculator
Chord: Three or more notes played simultaneously that form a harmonic unit. Chords are the basic building blocks of harmony and are named by their root note and quality (major, minor, seventh, etc.).; Three or more notes at once. Three or more toppings in the same bite. Named by what's in them and how they feel. The basic unit of pizza music theory, which is not a real field but should be.
Chord Voicing: A specific arrangement of notes within a chord across the strings and frets. The same chord can be voiced in many ways, each with a different sound and register.; The same chord arranged differently. Same toppings, different slice geometry. A four-cheese pizza eaten from the crust inward is technically the same pizza as one eaten point-first. It does not taste the same. This is voicing.
Chorus: A modulation effect that slightly detunes and delays a copy of your signal and blends it back in. Creates a shimmering, widened, lush sound — common in clean electric and 80s-style guitar tones.; Blends a slightly detuned copy of your signal back in, making it sound like two guitars. Wider. Wetter. The 1980s considered this an unambiguous improvement. The 1980s were not always wrong.
Chromatic: Relating to all 12 notes in the Western musical system, including every semitone. A chromatic scale moves up or down in half steps with no notes skipped.; Using all 12 notes without skipping any. Like ordering everything on the menu and calling it research. The pizza arrives. It is everything. It is too much. It is exactly what was requested.
Circle of Fifths: A diagram showing the relationships between all 12 major and minor keys, arranged so each key is a fifth apart from its neighbours. Essential for understanding key changes, chord progressions, and modulation.; A diagram of all 12 keys and their relationships. The menu. Every possible pizza is here. Most people look at it once, feel briefly enlightened, and order the same thing as last time.
Clean Tone: A guitar sound with no distortion or clipping — the unaltered, natural amplified sound of the guitar. The foundation tone that overdrive, distortion, and modulation effects are applied to.; No distortion. No effects. Just guitar. A pizza with only sauce and mozzarella. Critics call it restrained. Enthusiasts call it foundational. Everyone agrees it depends entirely on the quality of the ingredients.
Compressor: An effect or circuit that reduces the dynamic range of a signal — making quiet notes louder and loud notes quieter. Compressors add sustain, evening out picking dynamics, and are widely used in country and funk playing.; Makes quiet things louder and loud things quieter. Applies consistent pressure to every part of the slice so no single bite is dramatically different from any other. A very fair device. Some find it soulless. They are also probably difficult to cook for.
Cutaway: A curved indentation in the guitar body near the neck joint that allows the fretting hand easier access to the higher frets. Single-cutaway (e.g. Les Paul) and double-cutaway (e.g. Stratocaster) are common configurations.; A notch in the body allowing access to higher frets. A missing slice that serves a structural purpose. Single cutaway removes one slice; double removes two. The pizza is smaller. The reach is better. Design involves tradeoffs.

D

Dead Note (Ghost Note): A muted note that produces a percussive thud rather than a defined pitch. The fretting hand lightly touches the string without pressing it to the fret. Common in funk and rhythm guitar for rhythmic texture.; A muted, percussive thud with no defined pitch. A topping that lost its flavor but retained its texture. In funk, this is celebrated. At the dinner table, it prompts questions.
Decay: The phase after a note's initial attack where its volume gradually decreases. A guitar with long decay has natural sustain; a guitar with short decay sounds more percussive.; How long the taste lingers after the initial bite. Long decay stays with you. Short decay is polite but forgettable. Most people prefer longer decay, which is why some pizzas are still being discussed at 2am.
Delay: An effect that records your signal and plays it back after a set time interval, creating echo. Delay time is measured in milliseconds and is often set to sync with the song's tempo. → BPM to Delay Calculator; Records and plays back the signal after a set interval. The same slice, served again slightly later. Best when synced to the tempo of eating. → BPM to Delay Calculator
Diatonic: Notes or chords that naturally belong to a specific key without any alteration. A diatonic chord progression uses only chords built from the notes of the key's scale.; Notes that belong naturally in the key with no alteration. Toppings that belong on a pizza. Pineapple is chromatic. This is a factual statement and also a position that will not be debated here.
Diminished Chord: A chord built from stacked minor thirds — a root, minor third, and diminished fifth. It has an unstable, tense quality and typically resolves to a more stable chord a half step up.; Unstable. Tense. Clearly wants to go somewhere else. The pizza that is almost done. You can tell, because it has started to look wrong in a very specific way that experienced pizzamakers recognize immediately.
DI (Direct Input): Recording a guitar signal directly into an audio interface without a microphone, bypassing a speaker cabinet. Often combined with amp or cab simulation software to recreate amplified tone.; Recording straight into the interface without a mic. Ordering online rather than calling. Something is missing in the transaction. You cannot identify it. The pizza arrives correctly. The dissatisfaction persists.
Distortion: An effect that heavily clips the guitar's waveform to produce a crunchy, sustaining tone. More aggressive than overdrive, distortion is standard in rock and metal. Can be generated by pedals, amp preamps, or power stages.; Heavy clipping. Thick, crunchy, sustaining. What happened to the crust at the back of the oven. More aggressive than overdrive. Standard in rock and metal. Requested by name by people who know exactly what they want.
Double Stop: Playing two notes simultaneously on adjacent strings. Used in country, blues, and rock to add harmonic richness to a lead line without playing a full chord.; Two notes at once on adjacent strings. Two toppings that belong together. Not a full chord. Not a single. Something in between that is arguably better than either. Country musicians discovered this first. They were right.
Drone: A sustained or repeated note held under changing harmony above it. Open string drones are common in folk, Indian-influenced music, and certain rock styles.; A note held steady while everything else changes around it. The hum of the oven that becomes the background to every conversation. Present before you arrived. Still there when you leave.
Drop D Tuning: An alternate tuning where the low E string is tuned down one whole step to D. Enables power chords to be played with a single finger on the lowest three strings, popular in rock and metal.; Tuning the low string down to D for heavier one-finger power chords. Adding a thicker crust option. Everything below the first position becomes larger and more serious. A structural decision. Commit or don't.

E

Effects Loop: An input/output on an amplifier that routes your signal through the loop after the preamp but before the power amp. Time-based effects (delay, reverb, chorus) usually sound better in the effects loop than in front of a distorted amp.; Routes signal through effects after the gain stage. Where the garlic butter goes. Adding it before the sauce produces a different result than after. Order matters in signal chains and in pizza construction. Both communities have strong opinions.
EQ (Equalizer): Controls that adjust the balance of bass, mid, and treble frequencies in a signal. Found on amps, pedals, and mixers. Boosting or cutting specific frequency ranges shapes the guitar's overall tonal character.; Bass, mids, and treble. On a pizza: the amount of sauce (bass), cheese (mids), and crust crispness (treble). Every pizzeria has a different EQ. Most customers have a preferred EQ they cannot articulate until they encounter one that is wrong.
Expression Pedal: A foot-controlled pedal that continuously varies a parameter — volume, wah filter frequency, pitch — as it's rocked back and forth, allowing hands-free real-time control.; Continuous, foot-controlled, hands-free parameter adjustment. The only acceptable way to request more toppings during a guitar solo. Rarely found at pizzerias. This is a gap in the market.

F

Feedback: The sustained, howling tone produced when a pickup picks up the amplified sound from the speaker and re-amplifies it in a loop. At controlled levels it's an expressive tool; uncontrolled, it's unwanted noise.; A self-sustaining loop of amplification. The smoke alarm of guitar playing. Controlled: expressive and deliberate. Uncontrolled: a reason the neighbors have learned your practice schedule.
Fingerpicking (Fingerstyle): Playing individual strings with the fingers of the picking hand rather than a plectrum. Used extensively in folk, classical, country, and blues — allows independent bass lines and melody to be played simultaneously.; Eating with the fingers rather than a fork. More intimate. Messier. Allows independent bass lines and melody to be enjoyed simultaneously if you have enough fingers and a particular relationship with your food.
Flanger: A modulation effect that creates a sweeping, jet-engine sound by mixing your signal with a very slightly delayed, pitch-shifted copy. More intense and metallic-sounding than chorus.; Sweeping, jet-like modulation. The feeling of watching pizza rotate in a microwave while waiting — hypnotic, mechanical, slightly anxiety-inducing. More intense than chorus. The pizza is probably fine. You cannot look away.
Flat (♭): A symbol indicating a note is lowered by one semitone. Also used informally to describe a guitar that is playing below the correct pitch. The opposite of sharp. → Guitar Tuner; A note lowered by one semitone. Also what happens to a pizza left out too long. Both are correctable. One requires a tuner. The other requires either a microwave or a decision about your standards. → Guitar Tuner
Fret: The metal strips (fret wire) embedded across the fretboard that divide it into semitone intervals. Pressing a string against a fret shortens its vibrating length, raising its pitch. → Fret Position Calculator; The metal strip that divides the neck into semitone increments. Where the crust is portioned. → Fret Position Calculator
Fretboard (Fingerboard): The flat surface on the front of the neck, usually made from rosewood, ebony, or maple, where strings are pressed to produce notes. Radius (curvature) varies by guitar model.; The surface where notes are made. The top of the pizza box, structurally speaking. Made from rosewood, ebony, or maple — none of which are food. This is fine. Not everything needs to be food.
Fret Buzz: An unwanted buzzing sound produced when a string vibrates against a fret it shouldn't be touching. Usually caused by low action, high frets, insufficient neck relief, or a low nut slot. → Fret Buzz Locator; Unwanted buzzing. The sound of a poorly cut slice dragging across the box. Caused by low action, high frets, or insufficient neck relief. Diagnosable. Fixable. Irritating in proportion to how quiet the recording session is. → Fret Buzz Locator
Frequency: The number of string vibrations per second, measured in Hz. Higher frequency produces a higher pitch. The standard tuning reference is A4 = 440 Hz.; Vibrations per second. Higher frequency, higher pitch. A4 = 440 Hz. How many times the cheese bounces before settling. This is not how physics works. The principle stands.
Fuzz: An aggressive distortion effect that saturates the signal to the point of clipping it into a near-square wave, producing a thick, woolly, buzzing tone. Associated with 1960s rock and psychedelia.; Aggressive distortion into a near-square wave. Thick. Woolly. Buzzing. What happened to the crust while you were not watching and also did not mind. Associated with the 1960s. Still correct for certain moments.

G

Gain: The amount of amplification applied to a signal. High gain settings push the amp or pedal into distortion; low gain keeps the signal clean. Gain is distinct from volume — it controls tone and saturation, not loudness.; How hard the signal is pushed into the amp before it clips. Essentially how hot the oven is. Too much and it burns. Too little and nothing interesting happens. The correct amount is subjective, deeply personal, and will be discussed at length.
Glissando (Slide): Smoothly sliding a finger from one note to another along the string without lifting it. The pitch shifts continuously rather than in steps, creating a vocal, slurred effect.; Continuous pitch shift from one note to another without lifting the finger. Pulling a slice from the pie without lifting it. Continuous. Expressive. The slice may not survive. The phrase will.
Grace Note: A very short ornamental note played immediately before a main note, adding expressive flavour. Often notated smaller than regular notes and executed as a quick hammer-on or slide.; A brief ornamental note just before the main note. The small exploratory bite taken before committing to the slice. Technically optional. Emotionally necessary.

H

Half Step (Semitone): The smallest interval in Western music — the distance between two adjacent frets, or between any note and the very next note up or down. Two half steps equal one whole step.; The smallest interval. One fret. One degree of heat difference. One extra topping that tips the balance. Two half steps make a whole step. Two degrees make a difference. Two extra toppings make a completely different order.
Hammer-On: A technique where a fretting finger is brought down firmly onto a fret without picking, causing the note to sound from the impact alone. Enables fast, smooth legato lines and is frequently combined with pull-offs.; Fretting a note by impact alone, without picking. Pressing a topping firmly into the dough until it becomes part of the pizza and not just resting on it. Commitment is required. The note will sound if you mean it.
Harmonic: A bell-like overtone produced by lightly touching the string at a node point (rather than pressing it down), causing the string to vibrate in segments. The 12th fret produces an octave harmonic; the 7th fret produces a harmonic a fifth above. → Harmonic Tuner → Node Calculator; A bell-like overtone from touching the string without pressing it. The pitch the cheese makes when it stretches to exactly the right length. Technically it doesn't make a pitch. Experientially it does. → Harmonic Tuner → Node Calculator
Headstock: The top end of the guitar neck where the tuning machines are mounted. Headstock shape and angle vary by manufacturer and affect string tension and resonance.; Where the tuning machines live. The part of the pizza box you hold while pulling a slice with the other hand. Structurally important. Frequently ignored until something breaks.
Humbucker: A double-coil pickup that cancels electromagnetic hum by wiring two coils out of phase. Produces a thicker, warmer, louder tone than single-coil pickups. Associated with Gibson and used widely in rock, jazz, and metal.; Two coils wired to cancel hum. Thicker, warmer, louder. Two pizzas stacked for structural integrity and reduced noise. You will not hear the hum. You will need to make a decision about portion size.
Hybrid Picking: A technique that uses a plectrum held between the thumb and index finger while the remaining fingers pluck individual strings. Combines flatpicking speed with fingerstyle flexibility.; Pick and fingers simultaneously. One hand on the flatpick, other fingers handling individual strings. Combines efficiency with flexibility. Requires practice. Rewards patience. Confuses onlookers who don't play guitar.

I

Impedance: The resistance a signal experiences in an electrical circuit, measured in ohms. Mismatched impedance between guitar, pedals, and amp can affect tone and signal strength. High-impedance guitar outputs work best into high-impedance amp inputs.; Electrical resistance in the signal path. How thick the sauce is. Affects flow. Mismatched impedance changes tone in ways that are subtle, hard to articulate, and brought up at the wrong moment in most conversations.
Intonation: The accuracy of pitch across the full length of the fretboard. A guitar with good intonation plays in tune at every fret, not just on open strings. Adjusted by moving the saddle forward or backward. → Intonation Drift Checker; Pitch accuracy across the entire neck. Whether the pizza is as good near the crust as near the center. A pizza with good intonation delivers on its promise at every fret. Most do not. → Intonation Drift Checker
Interval: The distance in pitch between two notes, measured in semitones or by name (minor third, perfect fifth, octave, etc.). Understanding intervals is the foundation of understanding scales, chords, and melody.; The distance between two notes. Named and measured. The gap between two slices. The space between what you have and what you want. Everything else is built on top of this.

J

Jam: An informal musical session where players improvise together, often without a predetermined structure. Jams are how most guitarists develop their ear, vocabulary, and ability to respond to other musicians in real time.; Playing informally with other people, no setlist, no plan. Eating pizza with people who do not have strong opinions about pizza. Both are rare. Both produce something unexpected. One becomes significantly more stressful if someone brings anchovies.

K

Key: The tonal centre of a piece of music — the note that harmony revolves around and typically resolves to. A key is defined by its scale (major or minor) and determines which chords and notes naturally fit together.; The tonal center everything orbits. The flavor the entire pizza was designed to deliver. Everything resolves to it. Changing the key changes the pizza. The toppings may remain the same. The experience does not.
Key Signature: The sharps or flats written at the beginning of a piece of notation indicating its key. A key signature of two sharps means the piece is in D major or B minor.; Notation at the start declaring which sharps or flats apply throughout. The sticker on the box telling you what you ordered. Present at the beginning. Remembered only if something is wrong.

L

Legato: Smooth, connected playing with minimal gaps between notes. On guitar, achieved primarily through hammer-ons and pull-offs rather than picking every note. Produces a fluid, vocal quality.; Smooth, connected. One bite flowing into the next without a pause to reconsider. A pizza eaten without putting it down. Fluid. Continuous. Usually a sign that something is very good or very urgent.
Lick: A short, practised melodic phrase used as a building block in solos and improvisations. Guitarists build a vocabulary of licks over time and deploy them in context, adapting them to the key and feel of a song.; A short, practiced phrase deployed instinctively when improvising. The go-to topping combination ordered without looking at the menu. Built over time. There is always one. You are probably thinking of it right now.
Loop Pedal: A device that records a musical phrase and plays it back continuously, allowing a solo player to build layered arrangements in real time. Commonly used in live performance and practice.; Records a phrase and plays it back indefinitely, allowing you to layer more on top. Orders the same pizza automatically on a loop. A profoundly useful device and a deeply inefficient way to manage food.

M

Major Chord: A chord built from a root, major third (4 semitones), and perfect fifth (7 semitones). Generally sounds bright, resolved, and stable. The most common chord in Western music.; Root, major third, perfect fifth. Bright. Resolved. The default pizza. Nothing wrong with it. Everything is in the right place. Critics find it predictable. Critics are still eating it.
Major Scale: A seven-note scale built on the pattern of whole and half steps: W-W-H-W-W-W-H. It forms the basis of most Western harmony and is the reference point for understanding modes and intervals.; The foundational seven-note scale. The original pizza recipe. Every other scale is derived from it. W-W-H-W-W-W-H. Every other pizza is measured against it. This is a fact that most pizzamakers will not confirm but cannot deny.
Minor Chord: A chord built from a root, minor third (3 semitones), and perfect fifth (7 semitones). Sounds darker and more melancholic than a major chord.; Root, minor third, perfect fifth. Darker. A pizza ordered alone at 10pm that is genuinely good but carries a quality about it that is hard to explain to someone who wasn't there.
Minor Pentatonic Scale: A five-note scale built from the first, third, fourth, fifth, and seventh degrees of the natural minor scale. The most widely used scale in rock, blues, and pop lead guitar.; Five notes. The most used scale in rock and blues. Five toppings that work everywhere, every time. You know what they are. You have always known. There are no surprises in the minor pentatonic.
Mode: A type of scale derived from the major scale by starting on a different degree. The seven modes — Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, Locrian — each have a distinct character and tonal flavour.; The same major scale started on a different note. Same pizza, eaten starting from a different slice. Technically the same. Experientially very different. The seven modes have names. Seven slices do not, but perhaps they should.
Muting: Intentionally deadening one or more strings to prevent unwanted ringing. The picking hand can rest lightly on the strings near the bridge (palm muting) or the fretting hand can release pressure to silence strings between notes.; Intentionally stopping strings from ringing. Holding the slice steady so it doesn't flop and take other slices with it. A controlled, deliberate act that creates space and defines rhythm. Underrated. Essential.

N

Natural Harmonic: A harmonic produced at specific positions on an open string (12th, 7th, 5th, 4th frets) by lightly touching without pressing. Natural harmonics have a pure, chime-like tone and are used for tuning and effect. → Harmonic Tuner; Chime-like tone from touching the string without pressing it. The note the oven makes when it reaches the correct temperature. Pure. Unmistakable. A sign that things are going according to plan. → Harmonic Tuner
Neck: The long section of the guitar extending from the body, carrying the fretboard. Neck profile (the cross-section shape) — C, D, V, U — significantly affects playing feel and comfort.; The long part. The handle of the pizza, structurally speaking. Ignored until something goes wrong with it. Available in C, D, V, and U profiles. None of these are pizza shapes. This is fine.
Neck Pickup: The pickup closest to the neck. Produces a warmer, fuller, rounder tone because the strings have more movement near the neck, generating stronger bass frequencies.; Warm. Full. Round. The center of the pizza where all the sauce collects. Rich. Preferred for jazz. Preferred for melted cheese. Not mutually exclusive preferences.
Neck Relief: The slight forward bow in a guitar neck, measured in thousandths of an inch. A small amount of relief (0.010"–0.015") creates space for string vibration and prevents fret buzz in the middle of the neck. Adjusted with the truss rod.; A slight bow in the neck that creates space for string vibration. A slight warp in the pizza box that somehow helps. You did not design it this way. It is correct anyway.
Node: A point on a vibrating string where there is no movement — the string divides into equal segments at these points. Touching the string at a node while playing produces a harmonic. → Node Position Calculator; The point on the string with no movement. The part of the pizza that holds everything together without asking for recognition. Touch it lightly and something unexpected and beautiful happens. → Node Position Calculator
Nut: The slotted piece at the top of the fretboard (near the headstock) that spaces and guides the strings. Nut slot depth affects action at the first fret and string-to-string spacing.; Guides string spacing at the top of the neck. The edge crust. Sets the width. Often overlooked until it fails — at which point it becomes the only thing anyone talks about.

O

Octave: The interval between a note and another note with exactly double its frequency — always 12 semitones apart. Notes an octave apart share the same name but sound higher or lower in register.; Same note, double the frequency. Same pizza, twice the diameter. Technically the same. Practically very different. One is reasonable for a weeknight. The other requires a decision you will not regret but will need to explain to yourself later.
Open Chord: A chord that includes one or more open (unfretted) strings. Open chords typically have a fuller, more resonant sound than barre chords because open strings vibrate more freely.; A chord with open strings included. No substitutions. No adjustments. Fuller and more resonant than barre chords. The original order. What it was designed to be. There is nothing wrong with the default.
Open Tuning: Tuning the open strings to form a chord, allowing slide technique and certain chord shapes unavailable in standard tuning. Common open tunings include Open G (D-G-D-G-B-D) and Open D (D-A-D-F#-A-D).; Tuning strings to form a complete chord on their own. A pizza that is already good before you add anything. Open G. Open D. Both unlock things that standard tuning cannot reach. Committed players have strong preferences and will explain them at length.
Overdrive: A soft-clipping distortion that simulates the sound of a tube amplifier being pushed past its headroom. Warmer and more dynamic than distortion — responds to picking attack and guitar volume control.; Soft clipping. Warm. Responsive to how hard you push it. A pizza kept in the oven slightly past done — on purpose, with intention, because someone who knows what they are doing decided this was correct. People request this. They are right.

P

Palm Muting: A technique where the edge of the picking hand rests lightly on the strings near the bridge, producing a muffled, tight, chunky sound. Central to rhythm guitar in rock and metal, often combined with distortion.; Resting the hand on the strings to produce a muffled, chunky sound. Holding the slice down so it doesn't flop. Sounds controlled. Feels powerful. Looks like nothing is happening. Everything is happening.
Passive Pickup: A standard pickup with no built-in preamp, requiring no battery. Passive pickups have a warm, organic sound that responds naturally to playing dynamics. The most common pickup type.; No preamp. No battery. Warm and organic. Responds naturally to how hard you play. A pizza with no additives. Does not require charging. Will not fail at the wrong moment. The most reliable option available.
Pedalboard: A board or case used to organise, mount, and connect multiple effects pedals in a signal chain. Power supplies, patch cables, and velcro or mounting rails keep pedals in a consistent, giggable arrangement.; An organized board of effects, cabled and mounted in a consistent arrangement. The condiment rack. Everything has a place. The order is intentional. Something has been added since last time and the routing has changed and nobody mentioned it.
Pentatonic Scale: A five-note scale available in major and minor forms. The minor pentatonic is the most commonly used scale in rock, blues, and pop lead guitar. Its five notes all work over a range of chord changes, making it a versatile starting point for improvisation.; Five notes. Work everywhere. In any key. Over any changes. There is no wrong time to use the pentatonic. There are more sophisticated choices. This one is reliable. Always have it available.
Phaser: A modulation effect that creates a sweeping, whooshing sound by mixing your signal with a phase-shifted copy. Sounds like a gentle, filtered rotation and is prominent in funk, psychedelic rock, and Van Halen-style playing.; Sweeping, whooshing modulation. The feeling of watching someone else's pizza rotate in the microwave while yours waits on the counter. Gentle. Rhythmic. Slightly alienating.
Phrasing: How notes are shaped and organised in a musical line — where notes start and stop, how they're articulated, and how they breathe. Good phrasing makes a solo sound like sentences rather than a stream of notes.; How notes breathe and connect. How a slice is held, when to bite, when to pause. Good phrasing makes a solo feel like someone speaking. Bad phrasing makes it feel like a list of ingredients read aloud.
Pickup: An electromagnetic device beneath the strings that senses their vibration and converts it into an electrical signal. The type of pickup (single-coil, humbucker, P-90) is the primary factor in an electric guitar's tonal character.; Senses vibration and converts it to an electrical signal. The device that detects what the pizza is doing and reports to the amp. It is a magnet. The pizza does not have one. These facts coexist without conflict.
Pickup Selector: A switch that determines which pickup or combination of pickups is active. A three-way switch selects bridge, middle, or neck; five-way switches (Stratocaster-style) add in-between positions that produce a distinctive thin, quacky sound.; Selects which pickup is active: bridge (bright), neck (warm), or the in-between positions (thin and quacky, beloved by people who know what they want). The topping combination you committed to by flipping a switch.
Position: A hand placement on the neck defined by which fret the index finger anchors on. First position covers frets 1–4; fifth position covers frets 5–8, and so on. Knowing multiple positions for the same scale expands the neck.; Where on the neck your fretting hand sits. Where you are standing relative to the pizza. Each position changes what is reachable. Know more positions. Reach more confidently.
Power Chord: A two-note chord consisting of the root and perfect fifth, written as the chord name followed by 5 (e.g. A5, E5). Power chords are the foundation of rock and metal rhythm guitar — simple to play and powerful through distortion.; Root and fifth. Two notes. No thirds. No drama. Two toppings. No questions. Simple. Powerful. Written with a 5 after the name. One finger on three strings. Maximum commitment from minimal input.
Progression: A sequence of chords played in order that forms the harmonic backbone of a song. Common progressions include I-IV-V (classic rock and blues), I-V-vi-IV (pop), and ii-V-I (jazz).; A sequence of chords with intention. The order the slices are eaten. I-IV-V. I-V-vi-IV. A progression implies that the chords were chosen, not arrived at by accident. Most good progressions and most good pizzas were not accidents.
Pull-Off: A technique where a fretting finger plucks or pulls off the string as it lifts, causing a lower already-fretted note to sound without picking. Frequently combined with hammer-ons to create fast, smooth legato runs.; Removing a finger to sound a lower note without picking. Pulling a specific topping off the slice and eating it separately. A statement. A decision. Frequently combined with hammer-ons for fast, flowing runs.

R

Resonator Guitar: A guitar that amplifies string vibration through one or more metal resonator cones built into the body rather than a hollow wooden chamber. Produces a loud, metallic, penetrating tone associated with blues and bluegrass.; Amplified through metal cones in the body rather than wood. Loud. Metallic. Penetrating. A pizza that hums slightly when you hold it. Not a flaw. A characteristic. Some people specifically seek this.
Reverb: An effect simulating the natural acoustic decay of sound in a physical space — a room, hall, spring tank, or plate. Adds depth and dimension to a guitar's tone and is one of the most universally used effects.; The sound of a physical space, applied to your guitar. The echo of a pizza box slid across a long table. Adds depth. Almost everything benefits from a small amount of reverb, including pizza, conceptually speaking.
Rhythm Guitar: The guitar role focused on playing chords and rhythmic patterns to support a song's harmonic and groove structure, as opposed to lead guitar, which plays melodies and solos.; Chords and groove. The sauce and dough. The structure everything else rests on. Underappreciated in real time. Immediately missed when absent. The person playing rhythm is doing more than it looks like. This is always true.
Riff: A short, repeated musical phrase — usually rhythmic and hook-driven — that forms the backbone of a song. Classic riffs (Smoke on the Water, Whole Lotta Love) are often as recognisable as the song itself.; A short, repeated phrase that defines a song. The slice you keep coming back to. The combination that works every time. A good riff is recognizable before the rest of the song starts. A good pizza is recognizable before you take a bite.
Root Note: The note a chord or scale is named after and built from. In an A minor chord, A is the root. The root gives the chord its sense of harmonic home.; The note everything is built on and named after. The thing the whole pizza is organized around. Remove it and the structure persists momentarily, then quietly questions itself.

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Saddle: The component on the bridge that the strings rest on before heading to their anchor point. Saddle position sets the intonation (string length) and height (action). → Intonation Drift Checker; The component the strings rest on, setting intonation and action. The part that decides how the slice sits before it's handed to you. Adjustable. Often the last thing anyone checks when something is wrong. Usually the first thing that needed adjusting. → Intonation Drift Checker
Scale: A sequence of notes arranged in a specific pattern of intervals. Scales define the harmonic and melodic vocabulary of a key. Common guitar scales include major, natural minor, pentatonic, blues, and modes.; A sequence of notes in a specific pattern. The toppings with internal logic. Not just a list — a structure. Change one interval and you have a different scale. Change one topping and you have a different pizza. Both are still edible. Neither is the same.
Scale Length: The distance from the nut to the saddle — the full vibrating length of the string. Scale length affects string tension, tone, and feel. Common lengths: 25.5" (Fender Stratocaster), 24.75" (Gibson Les Paul). → Fret Position Calculator; The full vibrating length of the string. How wide the pizza is before toppings. Affects tension, tone, and feel. 25.5 inches is a Stratocaster. 24.75 is a Les Paul. Neither is a pizza size. This has been confirmed. → Fret Position Calculator
Semi-Hollow Guitar: A guitar body style with a solid centre block and hollow wings. Combines the warmth and resonance of a hollow body with the feedback resistance and sustain of a solid body. The Gibson ES-335 is the classic example.; Solid center, hollow wings. Warm and resonant with controlled feedback. A pizza with a dense center and airy crust edges. Both worlds. Most of the warmth. Less of the uncontrolled howling.
Setup: The process of adjusting a guitar's action, intonation, neck relief, nut slots, and pickup height to optimise playability and tone. A well set-up guitar is easier to play and stays in tune better than one that hasn't been adjusted.; Adjusting action, intonation, relief, and pickup height for optimal performance. Getting the pizza ready before service. Not glamorous. Not optional. The difference between a guitar that plays well and one that buzzes every time you reach for the D string.
Sharp (♯): A symbol indicating a note is raised by one semitone. Also used informally to describe a guitar that is playing above the correct pitch. The opposite of flat.; A note raised one semitone. Also a pizza slightly too hot to eat immediately. Both are technically correct. Both require waiting. One can be fixed with a tuner. The other requires sitting there with a correct pizza and insufficient patience.
Signal Chain: The sequence of connections through which a guitar's audio signal travels — from guitar to pedals to amp. The order of effects in the signal chain significantly affects the final sound.; The route from guitar to amp. The route from oven to table. Order matters in both. Distortion before reverb is different from reverb before distortion. Garlic before sauce is different from garlic after sauce. Both of these are facts.
Single-Coil Pickup: A pickup with one coil of wire wrapped around magnetic pole pieces. Bright, clear, and articulate — but prone to electromagnetic hum. Associated with the Fender Stratocaster and Telecaster sound.; One coil. Bright. Clear. Articulate. Hums under fluorescent lighting. Thin-crust pizza. Crisp. Maximum clarity. Preferred by people who know exactly what they want and are willing to accept the hum as part of the character.
Slide (Bottleneck): A technique using a glass or metal tube worn on a finger to glide along the strings, producing smooth, continuous pitch changes without frets. Central to delta blues and Hawaiian lap steel guitar.; A glass or metal tube worn on the finger for continuous, fretless pitch shifts. Pulling a slice from the pie without lifting it. Continuous. Expressive. The slice may not survive intact. The phrase will.
String Gauge: The thickness of guitar strings, measured in thousandths of an inch (e.g. .009, .010, .011). Heavier gauges produce more volume, sustain, and tone but are harder to bend; lighter gauges are easier to play but sound thinner.; How thick the strings are. How thick the crust is. Light gauge: easy to play, sounds thin. Heavy gauge: harder to bend, more output, more conviction. Players develop strong preferences and will tell you about them unprompted.
Sustain: How long a note continues to ring after being struck before it fades away. Affected by body material, neck joint, string gauge, pickups, and electronics. Long sustain is prized in rock and lead playing. → Sustain Meter; How long the note rings. How long the slice stays warm enough to eat. The goal is always more. A pizza with good sustain is still worth eating at the last slice. This is rarer than it should be. → Sustain Meter
Sweep Picking: A technique using a single continuous pick stroke across multiple strings to play arpeggios at high speed. Each note is briefly fretted and released as the pick moves through, rather than individually picked. Common in neoclassical and shred guitar.; One continuous pick stroke across all strings for fast arpeggios. Eating each topping in a single sweeping motion across the slice. Technically impressive. Efficient. Slightly alarming to observe from across the table.

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Tap Tempo: Setting a delay, looper, or metronome BPM by tapping a button in time with the music. The device averages the intervals between taps to calculate the tempo. → BPM to Delay Calculator; Setting BPM by tapping in time. The device averages the taps. The table does not. → BPM to Delay Calculator
Tapping: A technique where fingers of the picking hand tap strings on the fretboard to produce notes, enabling rapid melodic runs and wide intervals impossible with standard fretting and picking alone. Popularised by Eddie Van Halen.; Both hands on the fretboard for fast, wide-interval runs. Eating with both hands simultaneously. No judgment. Maximum efficiency. Popularized by Eddie Van Halen, who was almost certainly not thinking about pizza at the time.
Tempo: The speed of a piece of music, measured in BPM (beats per minute). A higher BPM means a faster tempo. Tempo is set by a metronome, drum machine, or the feel of the musicians playing together.; How fast the music moves. How fast the pizza is being eaten. A higher BPM means a faster tempo. A faster eating tempo means the pizza is either very good or someone has somewhere else to be.
Time Signature: Notation indicating how many beats are in each measure and what note value equals one beat. The top number gives the beat count; the bottom gives the note value. 4/4 means four quarter-note beats per bar; 3/4 means three, giving a waltz feel.; How many beats per measure and what counts as a beat. 4/4: four beats per bar, standard, most pizzas. 3/4: three beats, a waltz, a fundamentally different pizza experience that most people only encounter by accident.
Tone Pot: The potentiometer (rotary knob) on a guitar that rolls off high frequencies as it's turned down, darkening the tone. At full it passes the full signal; rolled back it progressively cuts treble.; Rolls off treble as you turn it down. Produces a warmer, darker, murkier result. The dial on the oven, conceptually. Rolling it back cleans things up. This interaction is essentially the same. Both communities have discovered it independently.
Transpose: To shift a piece of music up or down in pitch by a consistent interval while preserving its internal relationships. A capo transposes a guitar up; software can transpose a recording in any direction. → Capo Transposition Calculator; Shifting everything up or down by a consistent interval while preserving all the relationships. Ordering the same pizza one size larger. Same thing. Different scale. The intervals are preserved. The experience is proportionally larger. → Capo Transposition Calculator
Tremolo (Effect): A rhythmic, pulsating variation in volume produced by a circuit or pedal. Often confused with vibrato, which modulates pitch. Classic tremolo sounds are found on vintage Fender amps.; Rhythmic volume pulsation. A pizza that keeps appearing and disappearing at a steady interval. Often confused with vibrato, which modulates pitch rather than volume. Vintage Fender amps had tremolo built in and labeled it vibrato. History is a complicated place.
Tremolo Arm (Whammy Bar): A lever attached to the bridge that allows the player to raise or lower string tension, bending pitch up or down. Despite the name, it produces vibrato (pitch variation) rather than true tremolo (volume variation).; The lever on the bridge that bends pitch up and down. The thing that makes the pizza waver expressively. Produces vibrato despite being called a tremolo arm. Nobody calls it the vibrato arm. History already addressed this. It has not resolved.
Triad: A three-note chord consisting of a root, third, and fifth. Triads are the basic building block of harmony — major, minor, augmented, and diminished triads each have a distinct character.; Three notes: root, third, fifth. The minimum responsible pizza. Sauce, cheese, one topping. A complete harmonic unit. Anything fewer is a foundation. A triad is where things start to sound like something.
Truss Rod: A metal rod running through the inside of the neck that can be adjusted to counteract string tension and control neck curvature (relief). Tightening straightens or back-bows the neck; loosening allows forward bow.; A rod inside the neck controlling curvature. The structural support inside the pizza box you never see and only become aware of when the box starts bending in the wrong direction. Adjustable. Essential. Not user-serviceable if you have never done it before.
Tuning Machines (Tuning Pegs): The geared mechanisms on the headstock used to tighten or loosen strings, adjusting their pitch. Locking tuners grip the string mechanically, improving tuning stability with tremolo use. → Guitar Tuner; The geared dials that adjust string pitch. The settings that determine whether the pizza sounds right before anything else happens. Everything downstream depends on these. Tune first. Then play. → Guitar Tuner

U

Unison: Two notes of exactly the same pitch. On guitar, the same note can often be played at different positions on different strings — finding these unison positions is useful for smooth position shifts and chord voicings.; Two notes at exactly the same pitch. Two slices from the same pie, confirmed identical. You needed both verified. This is understandable. Knowing where unisons are on the neck is useful. The pizza will not change between confirmations. You check anyway.
Unison Bend: A technique where two strings are played simultaneously — one note is bent up to match the pitch of the same note on an adjacent string. The beating between the two creates a crying, expressive tone central to blues and country soloing.; Two strings played simultaneously, one bent to match the other. Two toppings blended until they taste like one thing. The interaction creates a slight beating, a crying quality. Blues guitarists consider this a success. It is a success.

V

Vibrato: A technique where the pitch of a sustained note is repeatedly varied slightly up and down, adding warmth and expressiveness. Achieved by bending the string back and forth or with a tremolo arm. Rate (speed) and depth (how much the pitch varies) determine its character. → Vibrato Analyzer; Repeatedly varying pitch up and down on a sustained note. Wobbling the slice before each bite in a controlled, deliberate, rhythmic manner. Rate and depth matter. Too fast: anxious. Too slow: theatrical. Just right: expressive. → Vibrato Analyzer
Volume Pot: The potentiometer controlling the guitar's output level. Rolling back the volume also cleans up a slightly overdriven amp, allowing the guitar's volume knob to act as a gain control as well as a level control.; Controls output level. Rolling it back also cleans up a slightly overdriven amp. The dial on the oven, again. Rolling it back cleans things up. Volume and gain are related. The oven and the guitar are related. Everything is connected.

W

Whammy Bar: See Tremolo Arm.; See Tremolo Arm. Also: yes.
Whole Step (Tone): An interval of two semitones — the distance of two frets on the same string. Most scale patterns are built from a combination of whole steps and half steps.; Two semitones. Two frets. Two steps across the pizza in one committed motion. A modest interval. A reasonable commitment. Most scale patterns alternate whole and half steps. Most good pizzas are built similarly.
Wound String: A string with a core wire wrapped in a coil of metal wire. The three lowest strings on a standard guitar are wound (either roundwound for brightness or flatwound for warmth and smoothness). The three highest are plain steel.; A string more complex underneath than it looks from above. The three low strings are wound; the three high strings are plain. The wound ones provide the foundation. The plain ones carry the melody. This is also true of pizza in a way that will become clear if you think about it long enough.

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