// Johann Sebastian Bach - El arte de la fuga: Contrapunctus 1 — J. S. Bach
// 120 bpm, 2/2, key F major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: Transcription provider: pdmx. https://musescore.com/score/5380159; license: https://creativecommons.org/publicdomain/zero/1.0/
// note: Full arrangement: all 78 bars on a 16-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 · [...]/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.

// other · violin · "Violin I"
const violin = note(`<
  ~@4 A B C D E F@5 G H@6 I@3 J ~@3 K B C D L@2 M N O P Q R@2 S T@2 ~@4 U V W X Y Z AA AB@3 AC@4 AD@4 AE@3 AF AG AH@2 AI
  AJ@4
>`.pickRestart({
  A: "a4 d5", B: "c5 a4", C: "ab4@2 a4 b4", D: "c5@5 d5 c5 bb4", E: "a4 d4 d5@4 db5@2",
  F: "[d5 a4 c5@3 a4 bb4@3 e4 a4@7 c5@2 b4 c5@5 d4 c5@3 a4 b4@4 a4 ab4 a4@4]/5", G: "b4@2 c5 d5",
  H: "[g4 bb4 a4@3 bb4 a4 g4@2 e4 f4 d4 bb4@5 g4 a4@2 d5@5 b4 c5@2 f5@5 d5 e5@2 a4@2 d5@3 b4 c5@2 f4@2 bb4@2]/6",
  I: "[a4@4 d4@2 g4@3 e4 f4 d5 e4@5 d4 a4@4 g4@2]/3", J: "a4 ~", K: "a4 e5",
  L: "[a4@2 ~@4 a4@3 c5 bb4 a4 bb4 a4 g4 gb4]/2", M: "g4@3 bb4 e4@3 gb4", N: "g4@3 e4 db4@3 a4", O: "d4@3 f4 e4@3 c5",
  P: "f4@3 a4 g4@3 e5", Q: "a4@3 c5 b4@3 g5", R: "[db5@4 d5@2 e5@3 db5 d5@5 e5]/2", S: "f5 e5 g5@3 f5 e5 d5",
  T: "[db5 a4 d5@3 b4 c5@4 bb4@2 a4@2 ~@2]/2", U: "e5 a5", V: "f5 d5", W: "db5@2 d5 e5", X: "f5@5 g5 f5 e5",
  Y: "d5@3 e5 db5@2 d5 f5", Z: "bb4@5 bb4 a4 g4", AA: "f4 bb4",
  AB: "[a4@6 e5@3 db5 d5 e5 f5 d5 g5@3 e5 a5 g5 f5 e5 d5 db5]/3",
  AC: "[d5 c5 bb4 a4 g4@5 e4 f4 d4 a4@5 gb4 g4 bb4 c5@5 a4 bb4 d5 eb5@2 d5@2]/4",
  AD: "[db5@2 a5@3 d5 g5@3 db5 f5@3 d5 e5@3 db5 d5@3 b4 c5@4 bb4@2 a4@3 a4]/4",
  AE: "[d5 f5 e5 g5 f5 e5 d5@3 f5@2 e5 f5 d5 e5@3 d5 c5 b4 c5@3 a5]/3", AF: "g5 gb5 g5 bb5 db5@2 ~@2", AG: "~@2 d5 ~",
  AH: "[~@4 d5@9 b4 db5@2]/2", AI: "d5@3 c5 bb4@3 a4",
  AJ: "[d4@8 ~@2 g4@2 a4@2 c5@4 bb4@2 c5@2 eb5@4 d5@2 gb5@2 a5@4 g5 a5 bb5@2 db5@2 d5@24]/4",
})).s("gm_violin").gain(0.3)

// other · viola
const viola = note(`<
  ~@12 A B C D E F G H I J K@2 L M@4 N O P@2 Q ~@5 R S T U V W X Y Z AA AB AC AD AE@2 AF AG@2 AH AI AJ AK AL AM AN AO AP
  AQ AR AS AT AU AV@2 A AW AX AY AZ
>`.pickRestart({
  A: "a3 d4", B: "c4 a3", C: "ab3@2 a3 b3", D: "c4@5 d4 c4 bb3", E: "a3@5 f3 g3@2", F: "c4@5 a3 b3@2",
  G: "e4@5 db4 d4@2", H: "g4@5 e4 f4@2", I: "e4@3 a4 d4@3 e4", J: "db4@2 d4 a3 b3@3 db4", K: "[d4 a3@5 bb3@2]/2",
  L: "~ e3 a3@3 bb3 a3 g3", M: "[a3@2 b3@2 c4@5 a3 bb3@2 a3@2 d4@3 b3 c4@2 b3@2 e4@3 a3 d4@3 d4 c4 b3]/4",
  N: "c4 d4 e4@3 e4 d4 c4", O: "b3@2 c4 ab3", P: "[a3 g3 gb3 e3 gb3@2 g3@3 g3 f3 e3 f3 e3 d3 db3]/2", Q: "d3 ~@3",
  R: "e3 a3", S: "f3 d3", T: "db3@2 d3 e3", U: "f3@5 g3 f3 e3", V: "d3@6 a3 f3", W: "bb3@3 g3 c4@3 a3",
  X: "d4 g3 c4 f3", Y: "bb3 e3 a3@2", Z: "d3@2 a3@3 ab3 gb3 ab3", AA: "a3@3 g3 f3 e3 d3 db3",
  AB: "d3@2 f3 d3 bb3@2 g3 e3", AC: "a3@3 f4 b3@2 db4@2", AD: "d4@2 b3 g3 c4@2 a3 f3",
  AE: "[bb3 d4 g4@3 e4 f4@3 f4 e4 d4 db4@4]/2", AF: "d4 c4 bb3 a3 g3 a3 bb3 c4",
  AG: "[d4 a3 d4@3 b3 db4@3 e4 a3 db4 d4@2 bb3 g3]/2", AH: "e3@2 f3 g3", AI: "a3@2 b3 db4", AJ: "d4 ~@2 gb3",
  AK: "g3 a3 bb3@2 ~@2 c4@2", AL: "d4@4 ~ g3@2 f3", AM: "e3 ~@3", AN: "~@2 f3 d3 g3@3 db3", AO: "f3@3 d3 a3@4",
  AP: "d3@2 d4@4 a3 f3", AQ: "bb3@5 ab3 a3@2", AR: "d4@5 b3 c4@2", AS: "f4@5 d4 eb4@2", AT: "d4@2 e4 ~", AU: "~@2 f4 ~",
  AV: "[~@4 f4@6 e4 d4 e4@2 ~@2]/2", AW: "bb3 g3", AX: "gb3@2 g3 a3", AY: "bb3@5 d4 c4 bb3", AZ: "a3",
})).s("gm_viola").gain(0.3)

// other · cello · "Violoncello"
const cello = note(`<
  ~@8 A B C D E F@2 G H I J K L@2 M N O P Q R S T@2 U V W X Y Z AA AB AC AD AE@2 AF@3 AG@2 AH ~@6 A B C D AI X AJ AK@3
  AL@5 AM AN AO AP@5
>`.pickRestart({
  A: "d3 a3", B: "f3 d3", C: "db3@2 d3 e3", D: "f3@5 g3 f3 e3", E: "d3 ~",
  F: "[~@2 a2 b2 c3 a2 f3@3 b2 e3@3 f3 e3 d3]/2", G: "e3 g3 gb3 a3 g3@4", H: "d3@6 e3 d3", I: "e3@2 f3 e3 gb3@2 g3 gb3",
  J: "ab3@2 a3 ab3 a3@2 bb3 a3", K: "b3@2 c4 b3 db4@2 d4 ab3", L: "[a3@5 f3 g3@3 e3 f3@3 d3 e3@2]/2",
  M: "d3@5 b2 db3@2", N: "d3@3 c3 bb2@4", O: "a2@3 g2 f2 g2 f2 e2", P: "d2 f2 e2 d2 a2@3 f2", Q: "bb2@3 g2 d3@3 f3",
  R: "a3@3 a2 e2@2 ~@2", S: "~ e3", T: "[a3@4 f3@5 f3 e3 d3 c3 d3 c3 b2]/2", U: "a2 d3", V: "db3 a2", W: "gb2@2 g2 a2",
  X: "bb2@5 c3 bb2 a2", Y: "g2@5 e2 f2@2", Z: "bb2@5 g2 a2@2", AA: "d3@5 b2 c3@2", AB: "f3@5 d3 e3@2",
  AC: "a2@3 g3 f3 e3 d3 db3", AD: "d3@3 f2 bb2@4", AE: "[a2@11 bb2 a2 g2 a2@2]/2",
  AF: "[bb2@3 g2 d3@6 e3@4 f3@5 d3 e3@3 db3]/3", AG: "[d3@3 b2 db3 a2 d3@3 c3 b2 a2 b2@4]/2", AH: "a2 ~@3",
  AI: "d3@5 eb3 d3 c3", AJ: "g2@3 g2", AK: "[a2@11 a2]/3",
  AL: "[bb2@3 g2 d3@5 bb2 c3@2 f3@5 d3 e3@2 a3@5 f3 g3@2 c4@5 a3 bb3@4 ~@2]/5", AM: "~@2 a3 ~", AN: "~ ab3",
  AO: "a3@3 a2", AP: "d3/5",
})).s("gm_cello").gain(0.3)

stack(violin, viola, cello)