// Classical Gas — Mason Williams
// 145 bpm, 4/4, key A minor. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: Tempo changes preserved in elapsed time; displayed bars use the dominant tempo.
// note: metre changes (3/4 at bar 1, 4/4 at bar 12, 2/4 at bar 39, 4/4 at bar 40, ...) are rendered on a constant 4/4 grid of one bar per cycle
// note: Full arrangement: all 113 bars on a 16-step grid, each part at one level; ghost notes are separate "_soft" parts. Source detail keeps the original performance.
setcpm(145/4)

// 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.

// bass · acoustic bass · "ACOU BASS"
const bass = note(`<
  ~@15 A B C D E B C F E B C G@3 H@6 I J I J I K@2 L M ~ N O@2 P Q R Q S T@3 U@2 V@2 W@4 X Y Z AA AB AC Z AA AD AE AF AG
  AH AI AJ AK AJ AK AJ AL AM AN AO ~ AP AQ AR AS AT AQ AR AU@5 AV@5 ~@8
>`.pickRestart({
  A: "~@5 a2@6 c3@5", B: "~ a2@4 g2@6 f#2@5", C: "~ e2@4 e2@4 ~@2 e2 ~@4", D: "~ g1@4 a1@6 a1@5", E: "~ e2@4 a2@6 c3@5",
  F: "~ g1@4 a1@11", G: "[~ g1@4 a1@8 g1@8 a1@8 b1@8 c2@8 a1@3]/3",
  H: "[~ a1@4 e1@4 e1@4 f1@8 e1@2 e1@2 ~@4 a1@8 g1@8 a1@8 b1@8 c2@6 f1@6 d2@6 g2@6 e2@4 e2@4 e2 ~@2]/6",
  I: "~ a1@4 a1@4 a1 ~@3 a1 ~@2", J: "~ d2@4 d2@4 d2 ~@3 d2 ~@2", K: "[~ d2@4 d2@4 d2 ~@3 d2 ~ g2@6 c2@6 f2@5]/2",
  L: "~ a#1@4 a1@6 a1@5", M: "~ a1 ~@5 a1 ~@8", N: "~@2 c#2!2 ~ g#1@2 a#1",
  O: "[c#2@2 g#1@2 g#1@2 c#2@4 c#2 ~@2 g#1@2 a#1, ~@11 c#2@3 ~@2]/2", P: "c#2@2 g#1@2 g#1@2 c#2 ~",
  Q: "~@2 e2!2 ~ b1@2 c#2", R: "e2 b1!2 e2", S: "e2@2 b1@2 b1@2 e2 ~",
  T: "[~@2 g2@6 c2@6 f2@6 a#1@4 a1@6 a1@6 a1 ~@5 a1 ~@5]/3", U: "a1/2", V: "a1!4", W: "a1 ~@3 a1 ~@3 a1 ~@3 a1 ~@3",
  X: "a1 ~@5 a1 ~@5 a1 ~@3", Y: "~@2 a1 ~@5 g1@8", Z: "c2@3 c2@3 ~@2", AA: "b1@2 b1!2", AB: "a1@3 a1@3 ~@2",
  AC: "g1@2 g1!2", AD: "a1@3 a1 a1@2 ~@2", AE: "g1@3 f#1!2 ~ e1@2", AF: "e2@3 e2@3 g1@2", AG: "a1 g1 a1 b1",
  AH: "c2 f1 d2 g2", AI: "e2@4 e2@4 e2 ~@3 a1@4", AJ: "a1@4 a1 ~@3 a1 ~@3 d2@4", AK: "d2@4 d2 ~@3 d2 ~@3 a1@4",
  AL: "d2@4 d2 ~@3 d2 ~ g2@6", AM: "c2@3 f2@3 a#1@2", AN: "a1@6 a1@6 a1 ~@3", AO: "~@2 a1 ~@5 a1 ~@7", AP: "~@11 a2@5",
  AQ: "~ c3@6 a2@4 g2@5", AR: "~ f#2@6 e2@4 e2@4 ~", AS: "~ e2 ~@5 g1@4 a1@5", AT: "~ a1@6 e2@4 a2@5",
  AU: "[~ e2 ~@5 g1@4 a1@8 g1@8 a1@8 b1@8 c2@8 a1@4 a1@4 e1@4 e1@4 f1@8 e1@2 e1@2 ~]/5",
  AV: "[~@3 a1@4 g1@4 a1@4 b1@4 c2@4 f1@4 d2@4 g2@4 e2@4 e2@4 e2 ~ a2@6 b1@6 g2@6 c2@6 f2@6 ~ a#1@2 ~@2]/5",
})).s("gm_acoustic_bass").gain(0.59)

// chords · acoustic guitar nylon · "NYLON GTR"
const acoustic_guitar_nylon = note(`<
  A@3 B@3 ~ C@3 ~ D E@7 F@8 G@2 H@6 I@7 J@2 ~@12 K@2 L M N@2 O@2 P Q R@2 S@2 T@2 U@2 V@2 W X@7 ~ Y Z AA@6 AB@5 AC@2 AD@4
  ~ AE@2 AF@2 AG@4
>`.pickRestart({
  A: "[~@7 e4@14 d4@14 ~@13]/3", B: "[~ c4@14 e4@14 d4@14 ~@5]/3", C: "[~@13 e4@12 e4@14 ~@9]/3",
  D: "~@5 [a4,c5]@2 [e4,c5]@2 [a4,c5]@2 e4@4 [e4,c5], ~@11 a4@2 ~@3", // Am C Am C
  E: "[~@3 [d4,b4]@18 g4@2 a4@2 g4@2 a4@4 e4@4 [c4,a4]@18 c5@2 [e4,c5]@2 [a4,c5]@2 e4@4 [e4,c5]@4 [d4,b4]@18 g4@2 a4@2 g4@2 a4@4 e4@4 [c4,a4]@13, ~@21 b4@10 b4@8 ~@14 a4@4 ~@2 a4@12 ~@14 b4@10 b4@8 ~@9]/7", // G F C Am C G F
  F: "[~@5 c5@2 [e4,c5]@2 [a4,c5]@2 e4@4 [e4,c5]@4 [d4,b4]@18 g4@2 a4@2 g4@2 a4@4 e4@4 [c4,a4]@18 c5@2 [e4,c5]@2 [a4,c5]@2 e4@4 [e4,c5]@4 [d4,b4]@18 g4@2 a4@2 g4@2 a4@4 e4@4 a4@4 e4@2 a4@2 [d4,b4]@4 g4, ~@5 a4@4 ~@2 a4@12 ~@14 b4@10 b4@8 ~@14 a4@4 ~@2 a4@12 ~@14 b4@10 b4@8 ~@9, ~@115 c4@8 ~@5]/8", // C Am C G F C Am C …
  G: "[~ b4@2 c5@4 a4@2 c5@4 [d4,g4]@2 d5@4 g4@2 e5@6 d5@2 [e4,c5]@3, ~@3 e4@10 ~@8 g4@2 ~@9]/2", // G5 C
  H: "[~ [e4,a4,d5]@4 e4 ~ c5@2 [g4,b4]@4 a4@6 g4@2 [d4,a4]@2 [d4,a4]@2 ~@2 g4@2 a4@2 e4@2 a4@2 b4@4 g4@2 b4@2 c5@4 a4@2 c5@4 [d4,g4]@2 d5@4 g4@2 e5@2 c5@2 g4@2 f5@2 c5@2 a4@2 f#5@2 d5@2 c5@2 g5@2 d5@2 b4@2 g#5@2 e5@2 a5@2 e5@2 b5@2 e5, ~@13 c4@8 ~@8 c4@6 d4@8 e4@10 ~@43]/6", // Dsus2 G D5 G5
  I: "[~ c6@2 b5@2 a5@2 g5@4 a5@4 f#5@4 a5@2 f#5@4 a5@2 f#5@6 c6@2 b5@2 a5@2 g5@4 a5@4 f#5@4 g5@4 a5@2 g5@4 a5@4 c6@2 b5@2 a5@2 g5@4 a5@4 f#5@6 c6@2 a5@2 g5@4 a5@2 [b4,g5]@6 ~@11, ~ c5@14 a4@18 c5@14 a4@18 c5@14 d5@16 ~@17]/7", // Em
  J: "[~@7 [e4,a4,d5,e5]@6 [e4,a4,d5,e5]@6 [e4,a4,d5,e5] ~@5 [e4,a4,d5,e5] ~@6]/2", // Dsus2
  K: "[a3 f4@2 a4@2 d5@2 e5@2 d5@2 a4 f4 a4 d5 g4]/2", L: "b4 c5 b4@2 c5@2 a4@4 e4@2 a4@2 d5@2", M: "d5 ~ c5@3 b4@3",
  N: "[~ c5 ~@2 a4@6 e4@2 a4@2 b4@6 a4@6 g4@6, b4 b4@2 ~@13]/2", O: "[b4 c5 b4@2 c5@2 a4@4 e4@2 a4@2 b4@6 c5@6 d5@6]/2",
  P: "e5 c5 e5 d5 b4 d5 c5 a4", Q: "c5 b4 g4 b4 a4 b4 c5 d5", R: "[e5 d5 e5 c5@2 g4 c5 b4@2 g4 d5 g4 f5 e5 d5 b4]/2",
  S: "[e5 d5 e5 c5@2 a4 c5 b4@2 g4 d5 b4 f5 e5 d5 b4]/2", T: "[e5 d5 e5 c5@2 g4 c5 b4@2 g4 d5 e5 f5 e5 d5 b4]/2",
  U: "[e5 d5 e5 c5@2 g4 c5 [d4,b4]@9]/2", // G
  V: "[g4 a4 g4 a4@2 e4@2 [c4,a4]@2 e4 [g4,b4] d4 [a4,c5] e4 [g4,d5] d4, b4@5 b4@4 ~@7]/2", // F G Am G5
  W: "[c5,e5] g4 [c5,f5] a4 [d5,f#5] a4 [d5,g5] b4", // C F5 D G5
  X: "[[e5,g#5] b4 [d5,a5] b4 [e5,b5] b4 c6 b5 a5 g5@2 a5@2 f#5@2 a5 f#5@2 a5 f#5@3 c6 b5 a5 g5@2 a5@2 f#5@2 g5@2 a5 g5@2 a5@2 c6 b5 a5 g5@2 a5@2 f#5@3 c6 a5 g5@2 a5 [b4,g5]@3, ~@6 c5@7 a4@9 c5@7 a4@9 c5@7 d5@8 ~@3]/7", // E D5 E5 Em
  Y: "~@2 [e4,a4,d5,e5]@6 [e4,a4,d5,e5]@6 [e4,a4,d5,e5] ~", Z: "~@4 [e4,a4,d5,e5] ~@3 a3@2 f4@2 a4@2 d5@2",
  AA: "[[f4,a4,e5]@18 ~@9 [a4,c5]@2 [e4,c5]@2 [a4,c5]@2 e4@4 [e4,c5]@4 [d4,b4]@18 g4@2 a4@2 g4@2 a4@4 e4@4 [c4,a4]@18 c5@2 [e4,c5]@2 [a4,c5], d5@2 ~@31 a4@2 ~@24 b4@10 b4@8 ~@14 a4@4 ~]/6", // Fmaj7 Am C Am C G F C …
  AB: "[~ e4@4 [e4,c5]@4 [d4,b4]@18 g4@2 a4@2 g4@2 a4@4 e4@4 a4@4 e4@2 a4@2 b4@4 g4@2 b4@2 c5@4 a4@2 c5@4 [d4,g4]@2 d5@4 g4@2 e5@5, ~ a4@12 ~@14 b4@10 b4@8 ~@35, ~@41 c4@8 d4@8 e4@10 ~@8 g4@2 ~@3]/5", // C G G5
  AC: "[~ d5@2 [e4,c5]@4 [e4,a4,d5]@4 e4 ~ c5@2 [g4,b4]@4 a4@6 g4@2 [d4,a4]@2 [d4,a4]@2 ~, ~@19 c4@8 ~@5]/2", // C Dsus2 G D5
  AD: "[~ g4@2 [c4,a4]@2 e4@2 [d4,b4]@2 g4@2 [e4,c5]@2 a4@2 d5@2 g4@2 [c5,e5]@2 g4@2 [c5,f5]@2 a4@2 [d5,f#5]@2 a4@2 [d5,g5]@2 b4@2 g#5@2 e5@2 a5@2 e5@2 [e5,b5]@2 [c5,a5]@6 ~@13]/4", // F G C F5 D G5 E5 F
  AE: "[a3@2 f4@4 a4@4 d5@4 ~@5 d5@4 a4@2 ~ f4@2 a4@2 d5@2, ~@15 e5@6 ~@11]/2",
  AF: "[g4@2 a3@2 ~ f#4@4 a4@5 d5@4 ~@5 d5@4 a4@2 ~ f#4@2, ~@18 e5@7 ~@7]/2",
  AG: "[a4@2 ~ d5@2 g4@2 ~ [c#4,a4,c#5]@41 ~@15]/4", // F#m
})).s("gm_acoustic_guitar_nylon").gain(0.5)

// chords · acoustic guitar steel · "STEEL GTR"
const acoustic_guitar_steel = note(`<
  A@3 B@8 C@2 D E@3 D F@3 D F@3 D G@7 ~@2 H I H J H K L M N@3 O@2 P Q R@2 S T@2 U V@2 W X@6 Y Z@2 AA@2 Z@2 AB AC AD@2 AE
  AF@7 AG@2 ~@2 AH@3 AI@3 AJ AK@5 AL@6 ~@7
>`.pickRestart({
  A: "[~@7 [a4,c5]@5 a4@4 c5@5 g3@9 f#3@5 ~@4 [f4,a4]@5 [e4,g4]@4, ~@7 a3@14 [g4,b4]@14 [e3,b4]@13, ~@35 g4@9 ~@4]/3", // Am F Em G E5
  B: "[~ [a3,a4]@14 [a4,c5]@4 ~@5 c5@5 [g4,b4]@13 ~@5 [f4,a4]@5 [e4,g4]@4 [c4,e4,a4]@5 ~@2 g4@2 ~@3 g4@2 b4@2 ~ g4@2 d5@2 c4@6 ~@3 d5@3 [a4,c5]@7 d5@7 e4@4 c5@3 [g#4,b4]@16 ~@2, ~ e4@5 ~@13 a4@9 ~@14 b4@14 ~@9 b4@2 ~@10 [c5,e5]@9 ~@42, ~@42 g4@10 ~@9 g3@5 a3@5 ~ b3@6 ~@5 g4@20 ~@25]/8", // A Am G F Em Am G#m C
  C: "[~@5 c5@6 a4@4 c5@4 ~@2 g3@6 f#3@5, ~@5 a3@12 ~@15]/2", D: "~ e3@4 e3@4 ~@7",
  E: "[~@5 a3@16 c5@6 a4@4 ~@2 g3@8 ~@2 f#3@5, ~@21 a3@16 ~@11, ~@31 c5@4 ~@13]/3",
  F: "[~@5 a3@16 c5@6 ~@6 g3@8 ~@2 f#3@5, ~@21 a3@16 ~@11]/3",
  G: "[~@5 a3@8 g3@8 a3@8 [b3,d5]@8 c4@8 a3@8 e4@8 f4@8 a3@8 a3@8 g3@8 a3@8 d5@2 d5@2 ~@7, ~@53 b4@2 ~@46 b3@8 ~@3]/7", // Bm
  H: "~ a3@15", I: "~ f#5@2 a5@4 f#5@2 a5@4 e5@3, ~ d4@15", J: "~ f#5@2 g5@4 f#5@2 g5@4 f#5@3, ~ d4@15",
  K: "~ f#5@4 c6@2 a5@2 g5@4 a5@3, ~ d4@15", L: "~ [g4,b4,d5]@4 [c5,e5]@6 [a4,c5,f5]@5, ~@5 g4@4 ~@7",
  M: "~ [f4,d5]@4 ~@11, ~ a4@6 ~@9", // Dm
  N: "[~@13 a3@2 f4@2 a4@2 d5@2 [f4,a4,e5]@15 f5@2 f5@2 ~@2 g#4@4 a#4@2, ~@21 d5@2 ~@25]/3", // Fmaj7
  O: "[f5@2 f#5@2 f#5@2 f5@4 f5 ~@2 g#4@2 a#4, ~@11 f5@3 ~@2]/2", P: "f5@2 f#5@2 f#5@2 f5 g#4",
  Q: "c#5@2 f5@2 g#5@2 g#5@2 ~@2 g#5 ~@3 f#5@2", R: "[g#5@2 a5@2 a5@2 g#5@4 g#5 g#5@2 g#5 ~ f#5]/2",
  S: "g#5@2 a5@2 a5@2 g#5 e5",
  T: "[g#5@2 [g4,b4,g5]@2 [c5,e5]@3 [a4,c5,f5]@3 [f4,d5]@2 ~ [e4,a4,d5,e5]@3, ~@4 g4@2 ~@4 a4@3 ~@3]/2", // G C F Dm Dsus2
  U: "[e4,a4,d5,e5]@6 [e4,a4,d5,e5] ~@5 [e4,a4,d5,e5] ~@3", V: "[~ f4@2 a4@2 d5@2 e5@2 d5@2 a4 f4 a4 d5@2, a3 ~]/2",
  W: "[a3,e4,a4]@2 [a3,e4,a4]@2 [a3,e4,a4] ~ [a3,e4,a4] ~ [a3,e4,a4] ~ [a3,e4,a4] ~ [a3,e4,a4] ~ [a3,e4,a4] ~", // A5
  X: "[a3,e4,a4] ~ [a3,e4,a4] ~ [a3,e4,a4] ~ [a3,e4,a4] ~ [a3,e4,a4] ~ [a3,e4,a4] ~ [a3,e4,a4] ~ [a3,e4,a4] ~", // A5
  Y: "[a3,e4,a4] ~@3 [a3,e4,a4] ~@3 a4 ~ b4@2 c5@2 d5@2", Z: "[e5@4 e5@4 e5 ~ f5@2 e5@2 d5@6 d5@4 d5@2 e5@2 d5@4]/2",
  AA: "[c5 d5 e5 c5@2 a4@2 b4@3 ~@2 d5 e5 d5@2, ~@10 b4@3 ~@3]/2", AB: "c5 d5 e5 c5@2 a4@2 ~", AC: "g3@3 f#3@3 d3@2",
  AD: "[d3 ~@3 a4 [g3,b4] [a3,c5] [b3,d5], ~@7 a3@3 ~@6]/2", AE: "[c4,e5] [a3,f5] [d4,f#5] [b3,g5]",
  AF: "[[e3,g#5]@2 [e3,a5]@2 b5@2 a3@8 f#5 a5@2 f#5 a5@2 e5@2 a3@8 f#5 g5@2 f#5 g5@2 f#5@2 a3@8 f#5@2 c6 a5 g5@2 a5@2 [g4,b4,d5]@2, ~@8 e3 ~@19 d4@16 ~@16 d4@16 ~@16 d4@16 ~@4]/7", // E A5 G
  AG: "[[c5,e5]@3 [a4,c5,f5]@3 [f4,d5]@2 ~@8, g4@2 ~@4 a4@3 ~@7]/2", // C F Dm
  AH: "[~@11 c5@6 a4@4 c5@4 g3@8 f#3@6 e3@4 e3@4 ~, ~@11 a3@12 ~@2 b4@18 ~@5]/3",
  AI: "[~@11 a3@16 c5@6 ~@8 g3@7, ~@27 a3@16 ~@5]/3", AJ: "~ f#3@6 e3@4 e3@4 ~",
  AK: "[~@11 a3@8 g3@8 a3@8 [b3,d5]@8 c4@8 a3@8 e4@8 f4@8 a3@5, ~@59 b4@2 ~@19]/5", // Bm
  AL: "[~@3 a4@4 [g3,b4]@4 [a3,c5]@4 [b3,d5]@4 [c4,e5]@4 [a3,f5]@4 [d4,f#5]@4 [b3,g5]@4 [e3,g#5]@4 [e3,a5]@4 b5@4 [a4,c5,e5]@4 [d5,f#5]@6 [b4,e5,g5]@6 [g4,b4,e5]@6 [a4,c5,f5]@6 ~ [f4,d5]@4 ~@16, ~@3 a3@8 ~@32 e3 ~@7 a4@4 ~@21 a4@6 ~@14]/6", // G Am Bm C Dm D Em E …
})).s("gm_acoustic_guitar_steel").gain(0.52)

// chords · french horn · "FR.HORN"
const french_horn = note("<~@45 A B@2 C D E F G H@2 I ~@57>".pickRestart({
  A: "~@4 [g#3,f4]@2 [g#3,f4]@2 ~@2 g#3 ~@3 a#3@2", // C#
  B: "[c#4@2 [a#3,c#4,f#4]@2 [a#3,f#4]@2 [g#3,f4]@4 [g#3,f4] g#3@2 g#3 ~ a#3, ~@8 c#4 ~@3 c#4 ~@9 f4@6 ~@4]/2", // F# D#m C#
  C: "c#4 [a#3,c#4,f#4] [a#3,f#4] [g#3,f4], ~@8 c#4 ~@3 c#4 ~@3", D: "~@4 [b3,g#4]@2 [b3,g#4]@2 ~@2 b3 ~@3 c#4@2",
  E: "e4 [c#4,e4,a4] [c#4,a4] [b3,g#4], ~@8 e4 ~@3 e4 ~@3", // A F#m E
  F: "~@2 c#4@2 [b3,g#4]@2 [b3,g#4]@2 ~@2 b3 ~@3 c#4@2, b3 ~@3", G: "e4@2 [c#4,e4,a4]@2 [c#4,a4]@2 g#4 b4, ~@8 e4 ~@7",
  H: "[g#5 [b4,g5]@3 [g4,e5]@3 [a4,f5]@3 [f4,d5]@2 ~ [e4,e5]@3]/2", I: "[e4,e5]@6 [e4,e5] ~@5 d5@4, ~@12 e4 ~@3",
})).s("gm_french_horn").gain(0.52)

// chords · french horn · "FR.HORN" · soft notes
const french_horn_soft = note(`<
  ~@36 A ~ A ~ A ~@17 B@2 C D C D E F G ~ H I J@2 H K L@2 M N O@6 ~@15 P@4 ~@10
>`.pickRestart({
  A: "~ d4@15", B: "[a4@7 a4@3 a4@4 ~@2]/2", C: "a4 ~@13 a4 ~", D: "~@4 a4 ~@11", E: "a4 ~@15", F: "a4 ~@7 g4@8",
  G: "g4 ~", H: "e4", I: "f4", J: "g4/2", K: "g3@3 f#3@3 d3@2", L: "[d3@2 ~@5 a3@3 g3@2 a3@2 b3@2]/2", M: "c4 a3 d4 b3",
  N: "e3@4 e3@4 e3 ~@7", O: "[~@3 d4@4 ~]/2",
  P: "[~@3 f4@8 a3@8 ~@4 g3@4 a3@4 b3@4 c4@4 a3@4 d4@4 b3@4 e3@4 e3@4 e3 ~@4, ~@19 a3@8 ~@37]/4",
})).s("gm_french_horn").gain(0.29)

// chords · trumpet
const trumpet = note("<~@48 A B C D E F@2 G ~@57>".pickRestart({
  A: "~@6 f4 g#3", B: "c#4@2 f4@2 [b3,g#4]@2 [b3,g#4]@2 ~@2 b3 ~@3 c#4@2",
  C: "e4 [c#4,e4,a4] [c#4,a4] [b3,g#4], ~@8 e4 ~@3 e4 ~@3", // A F#m E
  D: "~@2 c#4@2 [b3,g#4]@2 [b3,g#4]@2 ~@2 b3 ~@3 c#4@2, b3 ~@3", E: "e4@2 [c#4,e4,a4]@2 [c#4,a4]@2 g#4 b4, ~@8 e4 ~@7",
  F: "[g#5 [b4,g5]@3 [g4,e5]@3 [a4,f5]@3 [f4,d5]@2 ~ [a4,e5]@3]/2", G: "[a4,e5]@6 [a4,e5] ~@5 d5@4, ~@12 a4 ~@3",
})).s("gm_trumpet").gain(0.47)

// chords · string ensemble 1 · "STRINGS"
const string_ensemble_1 = note(`<
  ~@26 A@7 ~@2 B@6 C D@2 ~@8 E F@2 G ~@2 H@2 I J I J K L M ~ N O P@2 N Q R@2 S T U@4 V W X@2 Y ~@12 Z@7 ~@3 AA@4
>`.pickRestart({
  A: "[~@7 e4@2 a4@2 ~@4 g4@2 b4@2 ~@4 a4@2 c5@4 [b3,d5]@8 e5@6 d5@2 c5@4 d5@4 b4@2 c5@2 b4@4 a4@6 g4@2 a4@2 a4@2 ~@2 g4@2 a4@2 e4@2 a4@2 ~@4 g4@2 b4@2 ~@4 a4@2 c5@4 d5@2 d5@2 ~@7, ~@3 a4@4 ~@4 b4@4 ~@4 c5@4 ~@60 b4@4 ~@4 c5@4 ~@17, ~@5 a3@8 g3@8 a3@8 ~@8 c4@8 a3@8 e4@8 f4@8 a3@8 a3@8 g3@8 a3@8 b3@8 ~@3]/7", // Bm
  B: "[~ c6@2 b5@2 a5@2 g5@4 a5@4 ~@2 d4@16 c6@2 b5@2 a5@2 g5@4 a5@4 f#5@18 c6@2 b5@2 a5@2 g5@4 a5@4 f#5@10 g5@4 a5@3, ~ a3@16 ~@79, ~@5 f#5@6 ~@21]/6",
  C: "~ [g4,b4,d5]@4 [c5,e5]@6 [a4,c5,f5]@5, ~@5 g4@4 ~@7", // G C F
  D: "[~ [f4,d5]@4 ~@2 [e5,a5,d6,e6]@6 [e5,a5,d6,e6]@6 [e5,a5,d6,e6] ~@5 [e5,a5,d6,e6] ~@6, ~ a4@6 ~@25]/2", // Dm Dsus2
  E: "~@6 g#4 b4", F: "[g#5 [b4,g5]@3 [g4,e5]@3 [a4,f5]@3 [f4,d5]@2 ~ [e4,e5]@3]/2",
  G: "[e4,e5]@6 [e4,e5] ~@5 [e4,e5] ~@3", H: "[[a3,a4]@7 [a3,a4]@3 [a3,a4]@4 ~@2]/2", I: "[a3,a4] ~@13 [a3,a4] ~",
  J: "~@4 [a3,a4] ~@11", K: "a4 ~@15", L: "a4 ~@7 g4@8", M: "g4 ~", N: "e4", O: "f4", P: "g4/2", Q: "g3@3 f#3@3 d3@2",
  R: "[d3@2 ~@5 a4@3 b4@2 c5@2 d5@2]/2", S: "e5 f5 f#5 g5", T: "g#5@2 a5@2 b5@2 c6 b5",
  U: "[a5 g5@2 a5@2 f#5@9 c6 b5]/2", V: "a5 g5@2 a5@2 f#5@3", W: "c6 a5 g5@2 a5@2 [g4,b4,d5]@2",
  X: "[[c5,e5]@6 [a4,c5,f5]@6 [f4,d5]@4 ~@2 [e5,a5,d6,e6]@6 [e5,a5,d6,e6]@6 [e5,a5,d6,e6] ~, g4@2 ~@4 a4@3 ~@7]/2", // C F Dm Dsus2
  Y: "~@4 [e5,a5,d6,e6] ~@11", // Dsus2
  Z: "[~@3 a4@6 g4@2 a4@2 a4@2 ~@2 g4@2 a4@4 [g3,b4]@4 [a3,c5]@4 [b3,d5]@4 [c4,e5]@4 [a3,f5]@4 [d4,f#5]@4 [b3,g5]@4 [e3,g#5]@4 [e3,a5]@4 b5@4 [a4,c5,e5]@4 [d5,f#5]@6 [b4,e5,g5]@6 [g4,b4,e5]@6 [a4,c5,f5]@6 ~ [f4,d5]@4 ~@16, ~@3 f4@8 a3@8 a3@8 ~@32 e3 ~@7 a4@4 ~@21 a4@6 ~@14]/7", // G Am Bm C Dm D Em E …
  AA: "[~@8 [c#4,a4,c#5]@41 ~@15]/4", // F#m
})).s("gm_string_ensemble_1").gain(0.25)

// other · string ensemble 2 · "SLOWSTRING"
const string_ensemble_2 = note(`<
  ~@15 A B C D E B C F E B C G ~@5 H@3 ~@43 I@6 ~@6 J K@2 L M N@5 ~@5 O@5 ~@3
>`.pickRestart({
  A: "~@5 a3@6 c4@5", B: "~ a3@4 g3@6 f#3@5", C: "~ e3@4 e3@4 ~@2 e3 ~@4", D: "~ g2@4 a2@6 a2@5", E: "~ e3@4 a3@6 c4@5",
  F: "~ g2@4 a2@11", G: "~ g2@4 ~@11",
  H: "[~@13 [c4,g4]@6 [f3,f4]@6 d4@6 g4@6 [e4,b4,d5]@4 [e4,b4,d5]@4 [e4,b4,d5] ~@2]/3", I: "[~@3 d3@4 ~]/2",
  J: "~@11 e3@5", K: "[~ e3@6 g2@4 a2@12 e3@4 ~@5]/2", L: "~@11 g3@5", M: "~ f#3@6 e3@4 e3@4 ~",
  N: "[~ e3 ~@5 g2@4 a2@8 g2@8 a2@8 b2@8 c3@8 a2@4 a2@4 [e2,e3]@4 [e2,e3]@4 ~@13]/5", O: "[a2@34 a2@37 ~ a2 ~@7]/5",
})).s("gm_string_ensemble_2").gain(0.25)

// drums · kick
const kick = s("bd").struct(`<
  ~@15 A@12 B A@2 B@2 C D E F G F@3 G H I J ~@5 K L@3 M N O P ~ Q@7 R@8 S@2 Q@2 T L@6 U V W ~ X Y@7 Z AA@2 AB Z@2 AC AD
  AE ~@8
>`.pickRestart({
  A: "~@5 x ~@5 x ~ x ~@2", B: "~@3 x ~ x ~@5 x ~ x ~@2", C: "~@3 x ~ x ~@9 x", D: "~ x ~@3 x ~ x ~@3 x ~ x ~@2",
  E: "~ x ~ x ~@3 x ~@3 x ~@3 x", F: "~ x ~@5 x ~ x ~@5 x", G: "~ x ~@5 x ~ x ~@6", H: "~ x ~@7 x ~@3 x ~ x",
  I: "~@5 x ~@5 x ~@4", J: "~ x ~@5 x ~@8", K: "~@2 x ~@2 x!2 ~", L: "~ x!2 ~@2 x!2 ~", M: "~ x ~ x ~@2 x!2",
  N: "~ x ~@2 x ~@2 x", O: "~@2 x ~@2 x ~@2", P: "x", Q: "x ~@2 x!2 ~@2 x", R: "x ~@2 x!2 ~@3", S: "x ~@2 x ~ x ~@2",
  T: "x ~@2 x ~ x!2 ~", U: "~@3 x ~ x ~@2", V: "x ~@2 x ~@2 x ~", W: "~ x ~@2 x ~@3", X: "~@11 x ~@4",
  Y: "~ x ~@3 x ~@5 x ~@4", Z: "~ x ~ x ~@5 x ~ x ~@4", AA: "~ x ~ x ~@7 x ~@4", AB: "~ x ~ x ~@5 x ~ x ~ x ~@2",
  AC: "~ x ~ x ~@5 x ~@5 x", AD: "~@3 x ~@5 x ~@5 x", AE: "~@5 x ~@6 x ~@3",
})).gain(0.56)

// drums · snare
const snare = s("sd").struct(`<
  ~@14 A B C@16 D E F G@6 H I J ~@4 K L M@2 N M O P ~ Q R@7 S R@11 T M@6 U V W ~ K X@13 Y ~@10
>`.pickRestart({
  A: "~@13 x!2 ~", B: "~ x!2 ~@6 x ~@6", C: "~ x ~@7 x ~@6", D: "~ x ~@7 x ~@3 x ~@2", E: "~@3 x ~@5 x ~@5 x",
  F: "~@5 x ~@3 x ~@3 x ~@2", G: "~@5 x ~@7 x ~@2", H: "x!2 ~@3 x ~@5 x ~@4", I: "~ x ~@5 x ~@6 x ~",
  J: "~@4 x ~@4 x ~@6", K: "~@15 x", L: "x!2 ~@2 x ~@3", M: "x!2", N: "x ~@3 x ~@2 x", O: "~@5 x ~@5 x ~@4",
  P: "x ~@6 x ~@4 x ~@3", Q: "~@10 x!2 ~@4", R: "~ x ~ x", S: "~@2 x ~@2 x!3", T: "~ x!2 ~", U: "x ~@2 x",
  V: "~ x ~@2 x ~@2 x", W: "~ x ~@2", X: "~@7 x ~@7 x", Y: "~@7 x ~@3 x ~@4",
})).gain(0.72)

// drums · low tom
const low_tom = s("lt").struct("<~@15 A ~@41 B ~@30 C ~@20 D ~@3>".pickRestart({
  A: "~@3 x ~@12", B: "~@7 x", C: "~@7 x ~ x ~@6", D: "~@5 x ~@10",
})).gain(0.56)

// drums · hihat
const hihat = s("hh").struct(`<
  ~@11 A B C D E F B G H I F B J K L F@2 K G@2 M N O G ~@12 P Q R S@2 T ~@5 S@2 U@2 V W Q X Y X U@2 Y Q@2 P Z AA U AB Q
  AC P AD X AE Z ~@3 AF AG AH AI AJ AI AK AL G AM AN AO AG G AP ~@10
>`.pickRestart({
  A: "~@5 x ~@3 x ~ x ~ x ~ x", B: "~ x ~@3 x ~@3 x ~@3 x ~@2", C: "~ x ~@3 x ~@3 x ~@3 x ~ x",
  D: "~ x ~ x ~ x ~@3 x ~ x ~@4", E: "~@9 x ~ x ~ x ~ x", F: "~ x ~ x ~ x ~@3 x ~ x ~ x ~ x",
  G: "~ x ~ x ~ x ~ x ~ x ~ x ~ x ~ x", H: "~ x ~ x ~@5 x ~@5 x", I: "~ x ~@7 x ~@6",
  J: "~ x ~ x ~@3 x ~ x ~ x ~ x ~ x", K: "~ x ~ x ~ x ~@3 x ~@3 x ~ x", L: "~ x ~@3 x ~ x ~ x ~@3 x ~ x",
  M: "~ x ~ x ~ x ~ x ~ x ~@3 x ~ x", N: "~ x ~@3 x ~ x ~ x ~ x ~ x ~ x", O: "~@3 x ~ x ~ x ~@3 x ~ x ~ x", P: "~ x!3",
  Q: "x!4", R: "~@3 x!5", S: "x!8", T: "x!7 ~", U: "x ~ x!6", V: "x ~ x!3 ~ x!2", W: "x ~ x ~ x ~@4 x ~@2 x ~@3",
  X: "x!3 ~ x!4", Y: "~@2 x!3 ~ x ~", Z: "x!2 ~ x", AA: "x ~ x ~ x!4", AB: "x ~ x!4 ~@2", AC: "x ~ x ~ x!2 ~@2",
  AD: "x!3 ~ x!2 ~@2", AE: "x!6 ~@2", AF: "~@15 x", AG: "~ x ~ x ~ x ~ x ~ x ~ x ~@3 x",
  AH: "~ x ~ x ~@3 x ~ x ~ x ~@3 x", AI: "~@3 x ~@3 x ~ x ~ x ~@3 x", AJ: "~@3 x ~ x ~ x ~ x ~ x ~@3 x",
  AK: "~@3 x ~ x ~ x ~@3 x ~@3 x", AL: "~ x ~ x ~@3 x ~@3 x ~@3 x", AM: "~ x ~ x ~ x ~ x ~ x ~@6", AN: "~@7 x ~@7 x",
// … 51 more lines