# AI Wiki - Music - Piano Improvisation ## Overview Improvisation is "immediate ("in the moment") musical composition" (Wikipedia), usually "within (or based on) a pre-existing harmonic framework or [[AI Wiki - Music - Common Chord Progressions|chord progression]]". The piano's advantage over most instruments: **you are your own band**. The left hand keeps the harmony and the groove going, the right hand makes up the melody. The difficulty is the same fact: two hands, two jobs, at once. This article is the piano route: what the left hand can do while you improvise, where the right hand's notes come from, how to start ([[AI Wiki - Music - Piano Keyboard Layout|black keys]], one chord, a 12-bar blues), and five styles to try. The instrument-independent method (rhythm first, chord tones, guide tones, approach notes, call and response) is in [[AI Wiki - Music - Chord Tones and Improvisation]]; how to shape a line is in [[AI Wiki - Music - Melody and Phrasing]]. Teachers agree on one thing more than any other. Jonny May's beginner lesson puts it bluntly: "poor rhythm = poor improvisation"; note choice matters less than rhythm, and beginners "tend to overplay". His answer is **structure**: a fixed left-hand pattern, a fixed set of right-hand notes, and simple rhythms. Everything below follows that idea. ## Step 1: the black keys The five black keys form a **pentatonic scale**: G♭ major pentatonic (G♭ A♭ B♭ D♭ E♭), which is also E♭ minor pentatonic (the same notes from E♭; see [[AI Wiki - Music - Pentatonic Scale]]). A pentatonic has no half steps, so there are no harsh clashes: any black key sounds acceptable against any other. Nicola Cantan's students start here, with F# major pentatonic (the same keys spelled with sharps): "you can play any black key at all, in any way you wish!" ```keyboard scale: Gb major pentatonic labels: intervals title: The black keys = G♭ major pentatonic (and E♭ minor pentatonic) ``` The simplest setup, from the same lesson: the left hand holds **two notes every four beats** (a fifth, G♭ + D♭), the right hand improvises on black keys. Then swap the jobs: right hand holds, left hand improvises. Next, alternate the left hand between G♭ (G♭ B♭ D♭) and E♭m (E♭ G♭ B♭): both chords are all black keys, so the right hand still can't go wrong. Jonny May's black-key lesson goes further with two lush chords that use all five black keys at once, as left-hand grips. The black keys teach freedom; their limit is that you're in one key you'll rarely meet in band music. Move to white keys next: **A minor pentatonic** (A C D E G) and **C major pentatonic** (C D E G A) are the same five white keys, and they fit the most common pop progressions in C and Am. ## What the left hand can do The left hand doesn't need to be clever while you improvise; it needs to be steady. In order of difficulty ([[AI Wiki - Music - Left-Hand Accompaniment Patterns]] has the patterns in detail): 1. **Roots** (single notes or octaves) on beat 1, or on every beat. Zero thinking, so all attention goes to the right hand. 2. **Root-fifth**: open, never muddy, fits any style. 3. **Shells**: root + 3rd or root + 7th, or root + 3rd + 7th; they define the chord with two or three notes ([[AI Wiki - Music - Piano Voicings]]). 4. **Broken chords**: root-fifth-octave [[AI Wiki - Music - Arpeggios|arpeggios]] for ballads. 5. **Ostinato**: "a motif or phrase that persistently repeats in the same musical voice" (Wikipedia). A boogie bass line, a repeating two-note rhythm, a riff: once it's automatic, it runs on its own while the right hand plays. ```keyboard range: C2-B3 --- notes: C2 C3 title: Root octave (C7) --- notes: C3 G3 title: Root-fifth --- notes: C3 Bb3 title: Shell: R + b7 --- notes: C3 E3 Bb3 title: Shell: R + 3 + b7 ``` Keep the left hand low but not too low: below about C3, use roots, fifths and octaves only; thirds down there sound muddy (the register rule in [[AI Wiki - Music - Piano Voicings]]). Practise the left hand alone until you can talk over it, then add the right. ## Where the right-hand notes come from - **Pentatonic** (5 notes): the safest; minor pentatonic over minor chords and blues, major pentatonic over major-key pop. - **Blues scale** (6 notes): minor pentatonic + b5, for blues and boogie ([[AI Wiki - Music - Blues Scale]]). - **Five-finger positions**: five adjacent notes of the key under the five fingers, no thumb crossing. Jonny May's beginner lesson uses two of them (thumb on G, thumb on C) in G major, and switches between them only occasionally, "to fight the temptation to overplay". - **Modes** (7 notes) over vamps: dorian over a minor i–IV, mixolydian over I–bVII ([[AI Wiki - Music - Modes]]). ```keyboard labels: intervals --- scale: A minor pentatonic title: A minor pentatonic: white keys, over Am --- scale: C blues title: C blues: over a 12-bar in C --- scale: D dorian title: D dorian: white keys, over Dm7-G (6 = B) ``` Two facts make the white keys easy: A minor pentatonic and D dorian need no black keys at all, and the C blues scale only adds three (E♭, G♭, B♭). ## Practice loops Start on one chord, then two, then a 12-bar blues. ```chords {title: Piano improvisation loops} {time: 4/4} {comment: Black keys: LH fifths (Gb-Db, Eb-Bb), RH any black key} | [Gb] . . . | [Gb] . . . | [Ebm] . . . | [Ebm] . . . | {comment: One chord: LH A-E fifth, RH A minor pentatonic} | [Am] . . . | [Am] . . . | [Am] . . . | [Am] . . . | {comment: Modal: D dorian, LH root-fifth or shells} | [Dm7] . . . | [G] . . . | [Dm7] . . . | [G] . . . | {comment: Pop ballad in G: LH octaves, RH G major pentatonic or five-finger positions} | [G] . . . | [Em] . . . | [C] . . . | [D] . . . | {comment: 12-bar blues in C: LH boogie or shells, RH C blues scale} | [C7] . . . | [C7] . . . | [C7] . . . | [C7] . . . | | [F7] . . . | [F7] . . . | [C7] . . . | [C7] . . . | | [G7] . . . | [F7] . . . | [C7] . . . | [G7] . . . | ``` ## Rhythmic motifs Since rhythm decides whether improvising sounds musical, limit the rhythm before the notes: - **One subdivision at a time.** Jonny May's progression: quarter notes in the left hand, then eighth notes ("doubles") in the right, then sixteenths ("quadruples"), then turns (quick alternations). Over a slow ballad at 65 bpm, sixteenths that accent the "e" and "a" of the beat sound sophisticated with five notes. - **Repeat a rhythm** with different notes: short-short-long, three times, then a different ending. Repetition makes a phrase sound intended ([[AI Wiki - Music - Melody and Phrasing]]). - **Leave space.** Two bars of playing, two bars of silence. The left hand keeps going, so silence never sounds empty. - **Line up chord tones on the beat.** Jonny May "mostly lines up chord tones on the beat"; passing notes go on the off-beats. ## Targeting chord tones The piano shows chord tones visually: whatever the left hand holds, the right hand can land on the same notes an octave or two higher. Over a 12-bar blues in C, the strongest targets are the **guide tones**, the 3rd and the b7, and they move by half step between chords: C7's E becomes F7's E♭, C7's B♭ becomes F7's A. ```keyboard range: C4-B4 labels: intervals --- chord: C7 highlight: 3 b7 title: C7: E and B♭ --- chord: F7 highlight: 3 b7 title: F7: A and E♭ --- chord: G7 highlight: 3 b7 title: G7: B and F ``` The same guide tones make a **left-hand shell** that moves by half steps through the blues: C7 = C3 E3 B♭3, F7 = F2 E♭3 A3, G7 = G2 F3 B3. ```keyboard range: C2-B3 --- notes: C3 E3 Bb3 title: LH C7: R 3 b7 --- notes: F2 Eb3 A3 title: LH F7: R b7 3 --- notes: G2 F3 B3 title: LH G7: R b7 3 ``` With the left hand holding them, the right hand can be as simple as a blues-scale phrase that ends on the next chord's 3rd. The general method (approach notes, enclosures, guide-tone lines) is in [[AI Wiki - Music - Chord Tones and Improvisation]]. ## Comping for yourself "Comping" is accompanying: on piano, accompanying your own right hand. Three ways to make it sound like a band: - **Chords on the off-beats**: the left hand plays short chords on "&" or on 2 and 4, leaving the beats to the right hand. - **Call and response between the hands**: the right hand plays a phrase, the left hand answers with a chord stab or a bass fill in the gap. Big hands not required. - **Right-hand chords**: when the melody rests, the right hand fills with a chord or a two-note harmony (a third or sixth below the melody note), the sound of gospel and pop piano. Jonny May's black-key lesson harmonises each melody note with the black key two below it. ## Styles to try **Blues and boogie.** Left hand: a boogie bass line (root-3-5-6-b7-6-5-3 in eighths) or shells; right hand: the C blues scale with a **crushed note**, a quick E♭ to E grace note that imitates a guitarist's bend from the b3 to the 3. Triplet feel ([[AI Wiki - Music - Swing and Shuffle Feel]]); repeated right-hand riffs over the 12 bars. See [[AI Wiki - Music - Blues Music]]. **Pop ballad.** Left hand: octaves or root-fifth, a broken chord at slow tempos; right hand: G major pentatonic or a five-finger position, add9 and sus colour. Use the [[AI Wiki - Music - Sustain Pedal|sustain pedal]], changed with each chord. See [[AI Wiki - Music - Pop Music]]. **Jazz-lite.** Over a ii–V–I (Dm7–G7–Cmaj7), left hand shells, right hand chord tones on the beat plus a chromatic approach note before each one. Swing the eighths. See [[AI Wiki - Music - Jazz Music]]. **Modal and ambient.** One chord or a two-chord vamp, slow: a low open fifth (D2–A2) held with the pedal, the right hand in D dorian, stressing the B (its 6) and leaving long silences. The black keys with the pedal down give an instant ambient wash. Ostinato textures belong here too: a repeating left-hand figure that never changes while the right hand slowly develops ([[AI Wiki - Music - Modes]]). **Free improvisation.** No chords, no key, no form: "a commitment to non-idiomatic musical expression" (Wikipedia), "playing without memory" in Derek Bailey's phrase. For a beginner it works best with one constraint instead of none: only one [[AI Wiki - Music - Intervals|interval]] (say fourths), only one register, or a dynamic arc from silence to loud and back. It trains listening and touch, and removes the fear of wrong notes. ## How to practise A 15-20 minute block, after technique and before repertoire: 1. **Left hand alone (2 min)**: the pattern for today, with a [[AI Wiki - Music - Metronome and Speed Building|metronome]], until it's automatic. 2. **Rhythm only (3 min)**: right hand on one note (or one five-finger position) over the left hand, varying only the rhythm. 3. **Free on the loop (5 min)**: one of the loops above, call and response, space. 4. **Targets (5 min)**: over the 12-bar, land on the 3rd of each chord on beat 1. 5. **Record (3 min)**: one take, listened back for rhythm and space, not wrong notes ([[AI Wiki - Music - Recording Yourself]]). Stay with one loop and one left-hand pattern for a week before changing either. A [[AI Wiki - Music - Playing with Backing Tracks|backing track]] or a drum loop frees the left hand when you want to work on the right hand alone. In the Music Practice plugin, each loop-and-style combination can be its own practice item, so the plugin schedules it like any other skill. [[AI Wiki - Music - Hand Independence]] covers the two-hand coordination problem itself. ## Common mistakes - Overplaying: constant eighth notes, no rests. - A left hand that changes pattern every bar or stops when the right hand gets busy. - Left-hand thirds below C3 that turn into mud. - Thinking about notes before rhythm. - Staying on the black keys forever; move to white-key pentatonics and real progressions. - Ignoring the chord changes in a blues: the same phrase over C7 and F7 without adjusting. - Using the sustain pedal through chord changes and blurring the harmony. ## Key Points - Structure frees improvisation: a fixed left-hand pattern, a limited set of right-hand notes, simple rhythms. - The black keys are G♭ major / E♭ minor pentatonic; G♭ and E♭m are all-black chords, so a black-key vamp has no wrong notes. - Left-hand options in order: roots, root-fifth, shells, broken chords, ostinato; low register gets fifths and octaves only. - Right-hand notes: pentatonic, blues scale, five-finger positions, modes over vamps; A minor pentatonic and D dorian use only white keys. - Over a 12-bar in C, guide tones (C7: E and B♭; F7: A and E♭; G7: B and F) are the targets and the left-hand shells. - Rhythm first: one subdivision at a time, repeated rhythms, chord tones on the beat, space. - Styles: blues/boogie, pop ballad, jazz-lite, modal/ambient, free improvisation. ## Open Questions - How should Sébastien split improvisation time between piano and guitar, given that the same theory (pentatonic, blues, chord tones) serves both? - Is a black-key start worth it for an adult returning player, or should he go straight to the A minor pentatonic over Am? - Research on improvisation pedagogy exists (Wikipedia mentions free improvisation as a pedagogical approach under study) but wasn't reviewed here; what does it say about structured vs free starts? ## References - Wikipedia, "Musical improvisation": https://en.wikipedia.org/wiki/Musical_improvisation - Wikipedia, "Ostinato": https://en.wikipedia.org/wiki/Ostinato - Wikipedia, "Free improvisation": https://en.wikipedia.org/wiki/Free_improvisation - Jonny May, "Beginner Guide to Improvise Piano", Piano With Jonny: https://pianowithjonny.com/piano-lessons/beginner-guide-to-improvise-piano/ - Jonny May, "How to Improvise Piano with Black Keys Only", Piano With Jonny: https://pianowithjonny.com/piano-lessons/how-to-improvise-piano-with-black-keys-only/ - Nicola Cantan, "Pentatonic Scale Improvisation", Colourful Keys: https://colourfulkeys.ie/pentatonic-scale-improvisation/ ## Related - [[AI Wiki - Music - Chord Tones and Improvisation]] - [[AI Wiki - Music - Melody and Phrasing]] - [[AI Wiki - Music - Pentatonic Scale]] - [[AI Wiki - Music - Blues Scale]] - [[AI Wiki - Music - Modes]] - [[AI Wiki - Music - Left-Hand Accompaniment Patterns]] - [[AI Wiki - Music - Piano Voicings]] - [[AI Wiki - Music - Hand Independence]] - [[AI Wiki - Music - Sustain Pedal]] - [[AI Wiki - Music - Playing with Backing Tracks]] - [[AI Wiki - Music - Swing and Shuffle Feel]] - [[AI Wiki - Music - Blues Music]] - [[AI Wiki - Music - Pop Music]] - [[AI Wiki - Music - Jazz Music]] - [[AI Wiki - Music - Recording Yourself]] - [[AI Wiki - Music - Guitar Improvisation]] - [[AI Wiki - Music - Blues Licks and Turnarounds]] - [[AI Wiki - Music - Piano Tips and Tricks]]