// after youve gone — Ella Fitzgerald
// 120 bpm, 4/4, key D major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: Transcription provider: pdmx. https://musescore.com/score/1555861; license: https://creativecommons.org/publicdomain/mark/1.0/
// note: Full arrangement: all 64 bars on a 24-step grid, each part at one level. Source detail keeps the original performance.
setcpm(120/4)

// Notation: c3@3 lasts 3 steps · ~ is a rest · [c3,e3] is a chord · "a, b" plays two voices at once · [...]/2 spreads a riff over 2 bars.
// A part's distinct bars are riffs (A, B, C...) played in order: edit a riff to change every repeat.

// chords · piano
const piano = note(`<
  A@2 B C D E D E F G F H I J K L F G M@2 N O P Q R@2 S T U V W X R@2 Y Z AA AB AC AD A@2 B AE R@2 S T U V W X R@2 Y Z
  AA AB AC AD A@2 B C
>`.pickRestart({
  A: "[[e4,g4]@3 ~ a4@2 c5@3 ~@7 a3@2 g3@3 ~ e3@2 ~@4 f4@2 g4@3 ~ b4@2 [g2,f4,a4,d5]@6 [g3,b3,f4,b4,e5]@6, g2@6 [g3,c4,e4]@6 g2@17 ~@19, ~@5 [g4,c5,e5]@7 f3@3 [g3,b3]@3 ~@6]/2", // Em Dm Em C G
  B: "[g4,e5]@3 ~@3 a3@3 ~ e3@2 g3@6 [g2,f4,b4,e5]@6, [c3,g3] ~@3, ~@2 [e4,c5]@7 ~@3", // C Em C5 C
  C: "[c3,g3] [g2,g3] [c2,c3,c5,e5,g5,c6] ~, [e4,c5]@11 ~@13", // C5 G C
  D: "~@4 [g3,e4,g4]@2 [a3,a4]@3 ~ [c4,c5]@2 [g3,e4,g4]@3 ~ [a3,a4]@2 [c4,c5]@3 ~ [e4,e5]@2, c3@23 ~", // C A C A C E
  E: "~@6 [e4,a#4,c#5]@6 [f4,b4,d5]@11 ~, [g3,g5]@23 ~", // A#dim Bdim G
  F: "~@4 [g3,e4,g4]@2 [a3,a4]@3 ~ [c4,c5]@2 [g2,g3,e4,g4]@3 ~ [a3,a4]@2 [c4,c5]@3 ~ [a3,a4]@2, c3@11 ~@13", // C A C A C A
  G: "[f#4,c5,d5]@3 ~@9 g2@3 ~ [d4,f4,b4]@2 [c4,f4,a4]@3 ~ [b3,f4,g4]@2, a2 [d3,f#3,c4] ~@2, ~@2 e5@3 [f4,b4,d5]@3 ~@4", // D7 Bdim F G7 D7 Bdim
  H: "[f#4,c5,d5]@3 ~@9 g2@3 ~ b3@2 a#3@3 ~ a3@2, a2 [d3,f#3,c4] ~@2, ~@2 e5@3 [f4,b4,d5]@4 ~@3", // D7 Bdim
  I: "e2 g#3@5 [e2,e3,e4,g#4,e5]@6 [f#2,f#3,d#4,a4,d#5]@6 [g2,g#3,e4,b4,d5]@6", // E D#dim E7
  J: "[a2,a3,e4,a4,c5]@3 ~ [b2,b3,e4,g#4,b4]@6 [c3,c4]@6 a3@2 g#3@3 ~ g3@2, ~@5 [e4,a4]@7", // Am E C A5
  K: "d2 f#3@5 [d2,d3,d4,f#4,d5]@6 [e2,e3,c#4,g4,c#5]@6 [f2,f#3,d4,a4,c5]@6", // D C#dim D7
  L: "[g2,g3,d4,g4,b4]@3 ~ [a2,a3,d4,f#4,c5]@6 [b2,b3,f4,g4,d5]@8 a5 [b4,d5,g5]@5, ~@3 [g3,f4]", // G D7 G7 G G7
  M: "[[g2,g3,e4,a#4,d5]@6 [g3,a#3,c4,e4,a#4,e5]@6 [e4,a#4,d5]@3 ~@3 c4@4 ~@6 c3@2 d3@3 ~ f3@2 a3@3 ~ e4@2 d4@3 ~ c4@2, ~@4 [c2,c3]@2 [g3,a#3]@2 f2@5 ~@3, ~@16 [e4,a#4,c5]@6 [c4,f4,a4]@19 ~@7]/2", // Em7b5 C7 Em7b5 C Gm C7 F
  N: "~@4 a4@2 b4@3 ~ c5@2 a4@3 ~ b4@2 c5@3 ~ d5@2, d#4@5 ~ [f#3,c4,d#4]@2, f#2 [f#3,c4] f#2 ~", // Cdim F#dim
  O: "[g4,c5,e5]@3 ~@9 g2@3 ~ a3@2 g3@3 ~ e3@2, g2 [g3,c4] ~@2, ~@2 [e4,c5]@3 [e4,g4]@7", // C C5 C Em
  P: "[f#4,c5,e5] ~@3 g2@2 [g3,b3,f4,g4]@2, [d2,d3] [d3,a3,c4] ~@2, ~@2 [f#4,a4]@3 [b3,f4,a4]@4 ~@3", // F#m7b5 G7 D D7 F#m Bm7b5
  Q: "~ g3 g#3 c3, [c4,e4,c5]@23 ~, c3@3 ~, g4@11 ~ g#4@11 ~", // C
  R: "[[c4,f4,a4]@3 ~ c5@2 d5@3 ~@7 a3@2 c4@3 ~ a3@2 ~@4 d5@2 [f4,g#4,e5]@3 ~ d5@2 e5@3 ~@3 [g#3,c4,d4]@6, [f2,f3]@6 [f3,a3,c4]@6 f2@17 ~@7 [f2,f3]@6 ~@6, ~@10 [e4,a4,c5,e5]@14 g#3@6 [g#3,c4,d4]@6 [f4,g#4]@11 ~, ~@5 d5]/2", // F Fm Dm7b5 F Am Dm7b5 Fm
  S: "[c4,e4]@3 ~ g4@2 [e4,a4]@4 ~@6 e3@2 g3@3 ~ a3@2, [e2,e3]@6 [g3,c4]@6 g2@11 ~, ~@5 [e4,g4,b4]@7", // C A5 E C5 Em
  T: "~@4 a4@2 [e4,b4]@3 ~ a4@2 b4@3 ~@3 [e3,a3]@6, [c3,b3]@6 [g3,c4]@6 [c#4,g4]@11 ~, ~@2 [e2,e3] ~, ~@2 a4", // E5 A5 Cmaj7 C5 C#dim E
  U: "[c4,f#4,a4]@3 ~@13 [g#3,c6,e6]@2 a3@3 ~ a#3@2, [d2,d3]@6 [d3,a3,c4]@6 d3@11 ~, ~@2 [f#4,b4,d5]@3 [f#4,b4,d5]@3 ~ d5@3", // F#dim G#aug D D7 Bm
  V: "[b3,f4,a4]@3 ~@13 [b5,d6]@2 [g3,b3,f4,d5]@6, [g2,g3] [g3,b3] [g2,g3] ~, ~@2 [f4,b4,d5]@3 [f4,b4,d5]@3 ~@4", // Bm7b5 Bm G7 G Bdim
  W: "~@4 [g3,g4]@2 [a3,e4,a4]@3 ~ [g3,g4]@2 [c4,e4,b4]@3 ~ [g3,g4]@2 [a3,e4,a4]@3 ~ [g3,g4]@2, c3@23 ~", // G A5 G Cmaj7 G A5 G
  X: "[e4,c5]@3 ~@9 c4@3 ~ [c3,c4]@2 [d3,b3]@3 ~ [e3,a#3]@2, c3 g3 ~@2, ~@2 [c4,e4]@3 g4@7, ~@5 e4@3 ~@4", // C G Edim C
  Y: "[g3,c4,e4]@3 ~ g4@2 [e4,a4]@4 ~@2 g2@3 ~ [c3,e4]@2 [b2,d#4]@3 ~ [a#2,d4]@2, [e2,e3] [g3,c4] ~@2, ~@5 b4@7, ~@5 [e4,g4]@3 ~@4", // C A5 C B A# E C5 Em
  Z: "c#4@3 ~ a4@2 [c#4,g4,b4]@3 ~ a4@2 b4@3 ~@3 [e3,a3]@6, a2@6 [e3,a3]@6 [c#4,g4]@11 ~, ~@2 a2 ~, ~@2 a4", // C#m7b5 A5 C#dim
  AA: "[d2,d3] [f3,a3,d4,a4,d5] [e2,e3] [e3,g3,a3,c#4,a4,c#5], [f4,f5]@11 ~ [e4,e5]@11 ~", // D Dm E A7 F E
  AB: "[d4,a4,d5]@3 ~ g#4@2 a4@3 ~@3 [f2,f3]@6 [f3,g#3,d4,g#4,d5]@6, [f2,f3] [f3,a3,d4] ~@2, ~@5 [e4,g#4,e5]@4 ~@3", // D5 F Ddim F Dm E
  AC: "~@4 d#5@2 [g4,c5,e5]@3 ~ c5@2 [e4,b4,d5]@3 ~ c#5@2 [e4,g#4,d5]@3 ~ b4@2, [g2,g3] [g3,c4,e4] [g#2,g#3] [e3,b3,d4]", // C E7 G C G# E7
  AD: "[e4,a4,c5]@3 ~ d#4@2 e4@3 ~@3 [d2,d3]@6 [d3,f#3,c4,d4,f#4,a4]@6, [a2,a3] [e3,g3,a3,c4] ~@2, ~@5 [d4,f#4,b4]@4 ~@3", // Am D D7 A Am7 Bm
  AE: "[c3,g3]@6 g2@6 c2@3 ~ [c3,e4,c5]@2 [d3,f4,b4]@3 ~ [e3,g4,a#4]@2, [e4,c5]@5 ~@3", // C5 C Bdim Edim C
})).s("gm_piano").gain(0.3)

stack(piano)