// Etude c moll opus 10 Nr.12 — Chopin Frederic
// 120 bpm, 4/4, key C major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: sustain pedal (CC 64) lengthens the held notes
// note: Full arrangement: all 65 bars on a 32-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 · "A.PIANO 1"
const piano = note("<A@3 B C@5 D@6 E@4 F@4 G@7 H@3 I J@6 K@6 L@4 M@6 N@8 ~>".pickRestart({
  A: "[~@6 c4@2 ~@10 c6@2 ~@10 c6@2 ~@4 c5@2 ~@9 g3@2 ~@3 c3 ~ a3 ~@8 c5@2 ~@9 a6@2 c7 e7@2 c7 ~ a6 ~@5 c5@2 e5@2 ~ a4 ~ c4@2, c2@32 e6@10 c4@2 e4@2 c4@3 c3@2 ~@7 f4@12 c6 f6 c6@4 ~@6 c6@3 c6@5 ~@6, ~@3 c3@6 c4@2 g4@2 c5 e5@2 c5 g5@3 e6 c6 g6@2 c7 c3@3 g6@5 c6 g5@4 e5@12 [f1,f2]@15 f5@12 ~@9 a5@4 ~ c5@2 ~@3, ~@5 g3@22 c7@12 c5@2 g4@10 ~@5 c4@4 c4@17 [f#1,f#2]@19, ~@8 e4@18 e7@25 ~@10 a4@5 c5@2 a5@9 ~@6 e6@7 ~@6]/3", // F F#
  B: "~@2 a3@2 c3@2 ~@3 b2 g3@2 b3@2 ~@13 b5@2 ~ a6 [d1,d2], d4@6 ~@8 d4@15 g6@2 ~, ~ c4@5 [g1,g2]@25 ~, ~@15 b3@4 b4 [f#1,f#2,d5]@11 ~, ~@17 g4@4 b4@2 g5 b5 [e1,e2] d6@5 ~", // D G D E
  C: "[~ a6@2 f#6 c6 ~@15 f#3@2 c3 ~@2 c3 ~@16 c6@2 ~ g#6 ~ d7 g6 ~@22 b2@2 ~@4 g3@2 ~@12 c6@2 ~@22 c4@2 ~@2 g3@2 c3 ~@2 c3 ~ f3 c4@2 ~@4 c5@2 ~@4 c6@2 ~@2 f6@2 c7 e7@2 ~@9 c5@2 e5, d7@2 ~@3 d6@6 d5@2 a4 f#4@2 c4 d4@2 a3@4 [g1,g2]@50 c2@30 c6 e6@2 c6@17 ~@7 c4@11 f6 c6@4 ~@2 c7@2 ~ c6@3 c6 f#5@5, ~@7 a5@16 ~@7 c4@2 f4@2 g#4 d5@2 c5 f5@2 g#5 d6@5 ~@5 b5@5 f5 b4@2 d5 g4@2 f4 b3@2 d#4@3 g3@2 f3@4 ~@2 c3@2 ~@2 c4@2 ~ c4@17 c7@7 g5@2 c5 e5@2 c5 g4@4 e4 c4@4 ~@7 f4@3 f4@14 ~@6 e6@8, ~@8 f#5@15 ~@4 g#3@17 f6@2 ~@4 f6@24 ~@10 g4@2 c5 e5 c5@2 g5@3 e6 c6 g6@2 c7 [c3,e7]@24 [a1,a2]@38, ~@10 c5@13 ~@3 f3@2 ~ d4@17 ~@6 d6@2 g5@20 ~@7 e4@20 g6@21 ~@13 f5 c5@2 f5@8 ~@3 f#6@11]/5", // G C A
  D: "[~@3 c4@2 ~@4 c3@2 ~@3 g3@2 c4@2 ~@15 g6@2 ~ d7@2 ~@22 b2@2 ~@2 d3 g3 ~ d4@2 ~@4 d5@2 ~@4 d6@2 ~@4 d7@2 e7@2 ~@8 c5@2 ~@4 c4@2 ~@5 c3@2 ~@4 e3 ~ c4@2 ~@17 c7@2 e7 f7 ~ d7 ~ b6 ~@12 d4@2 ~@3 b3@2 d3@2 ~ d3 ~ b3 ~@7 d5@2 ~@4 d6@2 ~@4 d7 [a1,a2,e7]@2, ~ c5@7 f#3@3 [g1,g2]@34 b5 g5@2 b4 d5@2 b4 g4@2 b3 d4@2 b3@2 g3@3 c2@33 c6 g5@3 e5@2 c5 g4@3 e4@2 c4@2 g3@3 [a1,a2]@15 e5 f5 e5@2 c6@2 e6 f6 e6@4 ~@6 d6@3 d6@3 d5@2 [a1,a2,f5]@13 [g#1,g#2]@14 d5@2 b5@3 e6 d6@4 ~@2, ~@2 f#4@9 ~@8 c4@4 c5 d5@2 c5 g5@2 c6 d6 c6@4 c7@2 ~ b6@24 ~@8 d4@2 g4@3 e5 d5@2 g5@3 e6 d6@2 g6@3 ~@2 c7@24 ~@12 c5@15 ~@6 f6@9 d5@11 ~@6 e4@7 e5@9 b6@2 ~@2, ~@5 e4@6 ~@7 d4@18 ~@5 b5@2 d6@19 c3@30 c6 e6@20 ~@7 e4@3 e4@17 [b1,b2]@16 b4@3 f4@2 d4@5 ~@5 d4@3 d4@16 ~@2, ~@6 c4@5 ~@2 c3@2 ~@6 g4@15 ~@3 g6@23 ~@7 e4@18 ~@3 g6@23 ~@8 f4@18 ~@11 b5@15 ~@11 b4@14 ~@2]/6", // A5 G A Dm G# B
  E: "[c7@2 ~ c6@2 ~@17 c3@2 ~@3 a3@2 c4@2 ~@4 c5@2 ~@9 a6@2 c7 ~@28 b2 ~ a3 ~@8 b4@2 ~@9 a6@2 ~ e7@2 ~@2 b5@2 ~@18 b2@2, ~@2 a6@11 c5@2 a4 c4@2 e4@2 c4 a3@5 c3@2 ~@3 e4@6 e5 c5@2 a5@2 c6 e6@6 d#7@5 b5@2 d#6@2 b5@3 b4 d#5@2 b4@2 a4 b3 d#4@2 b3@2 a3@3 [e1,e2]@35 b5 g#5@2 b4 e5@2 b4 g#4@2 b3@2 e4@2 b3 g#3@4, ~@5 e6@19 ~@10 a4@15 ~@4 a6@21 b2@2 ~@5 b3@4 b3@5 e5 b4@2 a5@2 b5 e6 b5@4 b6@2 ~ b6@24, ~@7 c6@17 ~@8 c4@12 c6@4 ~@3 b6@9 a5@16 ~@7 e4@19 ~@6 e6@20, ~@8 a5 c5@2 e5 [g1,g2]@12 [f1,f2]@52 ~@11 a4@15 ~@3 g#6@23]/4", // E G F
  F: "[~@3 e3 ~@14 c#6@2 ~@4 e5@2 ~@23 d3@2 ~ d3@2 g3@2 ~@15 g6@2 ~ f7 ~@21 d3@2 ~@2 c3 ~@23 d#7 ~ a#6@2, [a1,a2]@15 e5@2 a5@3 g6 c#6@2 a5@3 d2@7 g5@6 g4 c4@2 a3 e3@2 f#4@2 c4 a3@3 [g1,g2]@30 b5@2 g5 d5@2 f5 b4@2 g4 d4@2 f4 b3@2 g3@4 c2@17 a#5@2 e6 c6@2 g6@3 [f#1,f#2]@4, ~@4 a3@6 e4@17 ~@4 e5@3 c5@2 a4@16 ~@5 f4@3 g4@2 c5@2 d5@2 g5 c6 f6@2 d6@3 c7@2 ~ b6@23 ~@8 c4@16 c7@2 ~@3, ~@6 c#4@5 a4 c#5@2 g5@13 g6@2 ~ a5@22 ~@6 d4@5 f5@11 ~@3 g6@22 ~@4 a#3@5 g4@2 a#4@2 e5@13 ~@3, ~@8 g4@19 ~ c6@9 e4@15 ~@4 c4@18 ~@4 d6@2 f6@19 ~@3 g3@2 ~ e4@8 c5@2 g5@10 ~@3]/4", // A G F#
  G: "[~@19 c3@2 ~ c3@2 d#3 ~@3 d#4@2 ~@4 d#5@2 ~@15 b5 ~ d#6 ~@15 b2@2 ~ a#2 ~ f3 ~@16 f6@2 ~ d7@2 ~@18 g#3@2 ~ a#2@2 ~ a2 ~@23 a6@2 ~@10 a4@2 ~@11 a2@3 ~@2 a2 ~ d3 ~@18 f#6 ~ c7 ~ f6 ~@18 d3@2 ~ c2@2 g2, d#6@3 d#6@6 d#5 a#4@2 d#4 c4@2 d#4 a#3@2 d#3@3 [f1,f2]@12 a4@15 g#6@2 d#6@2 ~@2 g#5@6 g#4@2 d#4 b3@2 d#4 g#3@2 d#3@3 ~@4 g#3@5 f4 g#4 d5@2 a#4@2 f5 g#5 d6@2 a#5@3 g#6@2 ~ g#6@7 e5 a#4@2 d5@2 g#4 e4 a#3@3 d4@5 ~@6 e3@23 a6@3 a5@2 c#6@3 e5@3 c#5@2 a4 e4@2 a3 c#4@2 a3@2 e3@4 d2@10 d4@2 f#4 c5 a4@2 d5@2 f#5@7 ~@5 g5@3 f5 d5@2 g4 c5@2 f4 d4@2 g3 b3@2 f3@3 g2@2 ~@2, ~ c6@20 ~@10 d#4@5 c5@17 ~@3 d#5@3 d#5@12 ~@7 a#3@16 a#2@5 a#5@17 e3@2 ~@4 a2@4 a2@23 e6@5 a5@19 ~@6 c4@12 c6 a5@4 [g1,g2]@25 ~@3, ~@4 a#5@17 ~@9 c4@23 ~@4 b4@14 ~@5 d4@18 ~@3 e6@3 d6@2 g#5@16 ~@8 a3 c#4@2 a3@2 e4 a4 c#5@2 a4@2 e5 a5 c#6@2 a5 e6@4 c#7@27 ~@8 a3@16 ~@6 c6@18 ~@3, ~@6 d#5 c5@14 ~@5 a3@11 d#5@2 a5@2 d#6 c6 d#6@2 a6 d#7 [b1,b2]@24 a#1@47 ~@2 a1@54 ~@3 f#3@17 d6@2 ~@4 d6@21 ~@3]/7", // F G B
  H: "[c3@2 ~@40 c3@2 ~ g2 ~ f2 b2 ~@31 e4@2 a4 c5 ~@7 g6@2 ~@2 [d1,f6], ~@2 e3@6 e4 b4@2 g4 c5@2 e5 b5 g5@3 e6@2 b6@2 ~ c6@3 b5@2 e5@4 b4@2 e4 c4@2 f3@2 a3 e3@3 f2@2 ~@4 d3@2 ~ f3@4 a4@2 f4 b4@2 d5@2 a5 f5@3 d6@2 g6@2 ~ b5@4 d5@2 b4@3 ~@6 a5 c6@4 e6@2 ~, ~@3 b3@15 c6@2 ~@2 e6@8 c5@2 f4@13 b1@22 b5@2 ~@2 d6@5 g5@6 ~@3 g5@10 ~, ~@5 g3@15 [f1,f2]@26 ~@8 b3@2 d4@13 ~@5 e5@8 ~@4 e5@8 d2@2, ~@6 c4@14 ~@6 f5@20 ~@5 a3@18 [e1,e2]@13 [a1,a2]@13 ~]/3", // Dm F E A
  I: "~@10 d4@2 ~ b4@2 ~@8 d6@2 e6@2 ~@3 c5@2, c6@7 c5@6 ~@4 d5@3 b5 f6@4 ~@3 g5@4, ~ a5@3 a4@2 [g1,g2]@7 ~@3, ~@3 d5@9 g4@2 ~@4 g5@7 ~@2 b5@5, ~@5 f5@7 ~@3 f5@10 [c1,c2]@7", // G C
  J: "[~@2 g4@2 ~@3 a4 ~@7 e6@2 ~ d6@2 ~@25 d#6@2 ~@19 b1@10 ~@3 b2@2 ~ g#3 ~ e4@2 ~@20 e6@2 ~@28 c3@2 g3@2 c4@2 e4 ~@3 c5@2 ~@4 c6@2 ~@10 c6@2 ~@4 c5@2 ~@4 c4@2 ~@8 c3 ~ a3@2 ~ f4, e5@4 c4@2 f4@2 ~ e5@4 a5@4 c6@2 ~ a5@6 a4 f4@2 b3@2 d4 a3@2 f3@2 b2@2 b1@14 d#5@2 a4@2 f#4 b3 d#4@2 a3@2 f#3@2 b2@12 [e1,e2]@33 e6@2 g#5@2 e5 b4@2 e5@2 g#4@2 e4 b3@2 [d1,d2,f4]@3 b3@2 g3 d3@5 [c1,c2]@32 e6 c6@2 g5@3 e5 c5@2 g4@3 e4@2 c4 g3@3 [f1,f2]@8, ~ b4@4 [f1,f2]@13 [b1,b2]@7 d5@20 ~@4 f#5@29 ~@10 e4@17 g#6@33 ~@7 g4@15 e7@23 c3@2 ~@5 c4@2, ~@10 c5@8 ~@5 b4@22 b2@5 b4@28 ~@3 e3@2 ~@3 b3@22 b5@30 ~@5 c4@18 c7@24 ~@7, ~@12 f5@6 ~@4 f5@23 ~@2 a5@31 ~@11 g#4@2 e5 b4@2 e5 g#5@2 e6 b5@2 e6 g#6@2 e7@35 ~@10 e5 c5@2 g5@3 e6 c6 g6@2 c7 c3@4 g6@22 ~@7]/6", // E Dm C F B
  K: "[~@4 c5@2 ~@4 c6@2 ~@5 c7@2 ~ c7@2 ~ c6@2 ~@4 c5@2 ~@5 c4@2 ~@9 b2 ~ g3@2 ~@6 b4@2 ~@4 b5@2 ~@4 a6@2 ~ a6@2 f#6 ~@18 c3@2 ~ c3@2 ~@20 d7@2 ~@26 c3@2 g3@2 c4@2 ~@28 c5@2 ~@4 c4@2 ~ c4@2 g3, ~ c4@8 a5@3 f6 c6@2 a6@4 [f#1,f#2]@12 e5 c5@2 a4@4 d4 c4@2 a3@3 [g1,g2]@15 [f#1,f#2,d5] b4@2 g5@3 [e1,e2,d6]@7 ~@7 a5@8 c4@2 d4@2 a3 f#3@3 [g1,g2]@29 d6@2 g5 f5@2 b4 d5@2 g4 f4 b3@3 d#4@3 g3 f3@2 b2@4 ~@5 e4@21 g6 c6 e6@2 c6 g5@4 e5 c5@2 g4@3 e4@4, ~@3 a4@16 e7@2 ~ a6@21 c3@2 ~@6 b3@3 b3@12 b5@2 g6@3 d7@2 ~@2 c6@5 f#5 c5@2 d5@13 ~@3 g#3@6 g#4@2 d5 c5@2 f5 g#5 d6@2 c6@3 g#6@2 ~ g6@25 [c1,c2]@47, ~@6 f5@14 ~@5 e6@20 ~@11 g4@15 ~@6 d6@7 a4@2 f#4@10 ~@2 f3@2 ~ d4@15 f6@2 ~@3 f6@26 ~@8 g4 c5 e5@2 c5 g5@2 c6 e6@2 c6 g6@2 c7 [c3,e7]@23, ~@7 c5@13 ~@6 c6@2 a5@17 ~@7 d4@19 [d1,d2]@25 ~@6 c4@2 f4@14 ~@5 b5@24 ~@6 c4@18 c7@21]/6", // F# G D E7 G C D
  L: "[c3@2 ~ c3 ~@2 c4@2 ~@4 c5@2 ~@5 f6@2 ~@2 c7@2 ~@27 g3@2 c4@2 ~@4 c5@2 ~@4 c6@2 ~@5 d7@2 ~@3 b5@2 ~@4 b4@2 ~@17 c3 a3@2 ~@7 c5@2 ~@4 c6@2 ~@5 c7@2, ~@2 [a1,a2]@38 f#4@2 c4 [g#2,d#4] g#1 c4@2 f#3 c3@2 g1@36 d5@2 b4 g4 b3@2 d4@2 b3@2 g3 b2@2 [f#1,f#2]@16 d5 c5@2 a5@3 d6@2 c6 a6@4, ~@4 f3@10 f5 c5@3 c6@3 c6 f6@3 e7@2 ~ f#6@21 g2@31 d6@22 ~@6 d4@20, ~@8 f4@3 f4@14 ~@4 c6 e6@2 c6 f#5@2 c5@2 d#5@14 ~@5 d4@3 g4@3 d5 c5@2 g5@3 d6@4 c7@2 ~ b6@6 b5@2 g5@19 ~@4 c4@4 c4@18, ~@9 c4@8 f5@8 ~ c7@13 c5@12 c3@2 ~@4 c4@12 c6@2 g6@3 ~@3 g6@25 ~@9 a4@17]/4", // A G#5 F#
  M: "[d#7@2 ~@29 b2 ~@11 b4@2 ~@5 b5@2 ~@31 b2@4 ~@2 d3@2 ~@19 a6@2 ~@2 f7 b6@2 ~@20 d3@2 ~ c3 ~ g3@2 ~@6 c5@2 ~@5 c6@2 ~@3 a#5@2 ~ f#6@2 ~@9 d#4@2 f5@2 ~@9 g#3@2 d3, [f1,f2]@10 a5@2 c5 d#5@2 c5@2 a4 c4@2 d#4@2 b3@2 a3@2 b2@4 ~@3 g#3@29 g#6@18 b3 g#3@6 d2@20 f6@2 d6@4 [g1,g2]@8 b5@2 g5 d5@2 f5 b4@2 g4 d4@2 f4 b3@2 g3@4 c2@45 d4@2 f4 b3@5, ~@2 c7@2 ~ c6@4 c6@19 [e1,e2]@35 b5@2 e6@2 b5@2 g#5@20 ~@7 d4@2 a4@14 c7@2 ~@3 g6@22 ~@10 g4@7 a#5@3 g6@2 c6@4 c3@27, ~@3 a6@26 ~@8 e4@23 b6@10 b4 e5@2 b4@16 ~@3 c4@7 c5@2 f5@2 d5@11 ~@6 f6@19 ~@6 e4@7 e5@2 c5@10 e5@2 ~ c6@5 f#5@2 c5 a4@4 ~ b4@12, ~@7 d#6@22 ~@6 b3@4 b3@3 g#4@3 e5@2 b4@2 g#5@3 e6 b5@2 g#6@2 b6 e7@16 g#4@2 b3@2 e4@11 ~@2 a3@2 ~ f4@10 a5@2 c6@8 ~@4 d6@21 ~@5 c4@3 c4@19 ~@2 a5@2 d#5@9 ~@3 g#4@10]/6", // F G E
  N: "[~@2 c3 ~@8 c5@2 ~@4 c6@2 ~@16 c4@2 d5@2 ~@10 b2@2 ~ a#2 ~ e3 ~@16 e6@2 ~@24 a3@2 ~ g#3@2 ~@13 f6@2 ~@4 g#5 ~ b6@2 ~@21 g2@2 ~@3 g2 ~@10 g4@2 ~@2 e5@2 ~ c6 ~@31 [c1,c2]@55, ~ c2@13 c5@2 g5@3 e6 c6@2 g5@2 [g1,g2]@20 d4@2 g#3 f3@4 [g1,g2]@27 a5@2 c#6 f#5@2 d#5 a4@2 c#5 f#4@2 d#4@2 a3@2 c5@2 f#4@5 ~@2 d4@2 c5@2 g#4@2 d5 f5@2 c6 g#5@2 d6@3 c7 f6@2 d6@3 ~@2 f6@7 d5 g4@2 b4 f4@2 d4@2 g3 b3@2 f3 d3@4 [c1,c2]@32 g5 c6@2 g5 e5@2 g4 c5@2 g4 e4@2 g3@2 c4@3 e3@2 g2@4 ~@53, ~@4 g3@19 c5@2 ~@2 a5@6 a4 f#4@3 ~@3 g#4@12 ~@6 a#3@2 e4@2 c#5@2 a#4 e5@2 g5 c#6@2 a#5@3 g6@2 ~ f#6@20 d#4@3 g1@50 ~@4 e3@8 e4@3 c5 g4@3 g5@2 ~ g5@8 e6@25 ~@52, ~@5 c4@3 c4@2 g4@15 ~@3 f#5 c5@2 d#5@7 ~@3 f4@11 ~@5 c#4@17 ~@3 d#6@22 g2@29 g5@21 ~@8 c4@12 ~@3 e6@5 g6@27 ~@52, ~@6 e4@7 e5@12 d#6@13 ~@4 b3@10 ~@3 g3@6 g4@13 c#7@25 ~@4 f4@20 ~@3 d6@3 b5@2 f5@18 ~@6 g3@4 g3@10 ~@5 g6 c7@21 g3@8 ~@52]/8", // C G C
})).s("gm_piano").gain(0.56)

stack(piano)