// Communication Breakdown — Led Zeppelin
// 175 bpm, 4/4, key E major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: pitch bends are ignored
// note: duplicate parts dropped: ch 5 "Double Guitar 2" overdriven guitar (copy of ch 2 "Guitar2" distortion guitar)
// note: Full arrangement: all 116 bars on a 16-step grid, each part at one level; ghost notes are separate "_soft" parts. Source detail keeps the original performance.
setcpm(175/4)

// 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 · distortion guitar · "Guitar2"
const distortion_guitar = note(`<
  A B A B A B A B A B A B A B A B A B A B A B A C D@4 E@4 A B A B A B A B A B A B A B A B A B A B D@4 E@4 F ~ G H G H G
  H G H G H G H G H D@4 E@4 A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B A B
>`.pickRestart({
  A: "e2!8", B: "e2 [d3,a3,d4]@3 [a2,e3,a3,c#4]@2 [d3,a3,d4]@2", C: "e2 [d3,a3,d4]@3 [a2,e3,a3,c#4]@2 [d3,a3,d4] a2",
  D: "[[a2,e3]!3 c3 c#3 [a2,e3] [a2,f#3] [a2,e3,g3,c#4]@2 [a2,e3] [a2,f#3] [a2,e3]!3 [a2,f#3] [a2,e3,g3,c#4]@2 [a2,e3] [a2,f#3] [a2,e3]!3 [a2,f#3] [a2,e3,g3,c#4]@2 [a2,e3] [a2,f#3] [a2,e3]!3 [a2,f#3] [a2,e3], ~@3 e3@2 ~@27]/4", // A5 D A7 A5 D A5 D A7 …
  E: "[[b2,f#3]!2 [b2,g#3] [b2,f#3]!3 [b2,g#3] [b2,f#3,a3,d#4]@2 [b2,f#3] [b2,g#3] [b2,f#3]!3 [b2,g#3] [b2,f#3,a3,d#4]@2 [b2,f#3] [b2,g#3] [b2,f#3]!3 [b2,g#3] [b2,f#3,a3,d#4]@2 [b2,f#3] [b2,g#3] [b2,f#3]!3 [b2,g#3] [b2,f#3]]/4", // B5 E B5 E B7 B5 E B5 …
  F: "[e3,b3,e4] ~", G: "[e3,b3,e4,g#4]!8", H: "[e3,b3,e4,g#4] [d3,a3,d4]@3 [a2,e3,a3]@2 [d3,a3,d4]@2",
})).s("gm_distortion_guitar").gain(0.35).pan(0.2)

// bass · electric bass finger · "Bass"
const bass = note(`<
  ~@3 A B C B C B C B C B C B C B C B C B C B C D@4 E@4 B C B C B C B C B C B C B C B C B C B C F@4 G@4 H ~ B I B C B C
  B C B C B C B J K@4 L@4 B C B C B C B C B C B C B C B C B C B C B C B C M ~@7
>`.pickRestart({
  A: "~ d2@3 a1@2 d2@2", B: "e2!8", C: "e2 d2@3 a1@2 d2@2",
  D: "[a1!3 c2 c#2 e2 f#2 a2@2 a2!3 f#2 e2 c#2 a1@2 a1!2 c2 c#2 e2 f#2 a2@2 f#2@2 e2@2 c#2 b1 a1]/4",
  E: "[b1!4 b2 a2 f#2 b1@2 e2@2 f2@2 f#2 a2 b2@2 a2@2 f#2@2 d#2 e2 b1@2 b1 b1@2 b1@2 b1@2]/4",
  F: "[a1!3 c2 c#2 e2 f#2 a2@2 a2!3 f#2 e2 c#2 a1@2 a1!2 c2 c#2 e2 f#2 a2@2 g2@2 f#2@2 e2@2 c#2]/4",
  G: "[b1 b2@3 b2 a2 f#2 b1@2 b1@2 d#2@2 f#2 a2 b2@2 a2@2 f#2@2 e2 d2 b1@2 b1!3 b1@2 b1@2]/4", H: "e2 ~",
  I: "e2 d2@3 a1@2 a1@2", J: "e2 d2@3 a1@2 a2@2",
  K: "[a1!3 c2 c#2 e2@2 a2@2 g2@2 f#2@2 e2@2 d2@2 c#2@2 b1@2 a1@2 f#1@2 g1@2 g#1@2 a1!3]/4",
  L: "[b1!4 b2 a2@2 f#3@2 f#3@2 e3@2 d#3 b2 a2@2 f#2@2 e2@2 d2@2 d#2@2 b1@5 b1@2]/4", M: "e2!2 ~@6",
})).s("gm_electric_bass_finger").gain(0.32).pan(0.8)

// bass · electric bass finger · "Bass" · soft notes
const bass_soft = note("<~@108 A B C B C B C B>".pickRestart({
  A: "~@2 e2!6", B: "e2 d2@3 a1@2 d2@2", C: "e2!8",
})).s("gm_electric_bass_finger").gain(0.12).pan(0.8)

// chords · overdriven guitar · "Guitar 1"
const overdriven_guitar = note("<~@24 A@4 B@4 ~@4 C D E F C D E F C D E F C D E F A@4 B@4 ~@56>".pickRestart({
  A: "[~@7 [e3,g3,c#4,e4,a4]@3 ~@5 [e3,g3,c#4,e4,a4]@3 ~@5 [e3,g3,c#4,e4,a4]@3 ~@6]/4", // A7
  B: "[~@7 [f#3,a3,d#4,f#4,b4]@3 ~@5 [f#3,a3,d#4,f#4,b4]@3 ~@5 [f#3,a3,d#4,f#4,b4]@3 ~@6]/4", // B7
  C: "[b2,e3] ~ [b2,e3]@2 ~@2 [b2,e3]@2 [b2,e3]@2 [b2,e3]@2 [b2,e3]@2 [b2,e3]@2", D: "[b2,e3] [a2,d3]@3 d3@2 d3@2",
  E: "[b2,e3] ~ [b2,e3]@2 ~@2 [b2,e3]@2 ~@2 [b2,e3]@2 ~@2 [b2,e3]@2", F: "~ [a2,d3]@3 [d3,g3]@2 [d3,f#3]@2",
})).s("gm_overdriven_guitar").gain(0.4).pan(0.7)

// other · distortion guitar · "Double Guitar1"
const distortion_guitar_2 = note("<~@62 A@3 B C D@3 E F G H I J K L M N O P Q R S ~@31>".pickRestart({
  A: "a4 b4 ~ e5 d5 b4 ~ a4!2 b4 ~ e5 d#5 b4 ~ a4", B: "b4@2 b4@4 ~@2 d5@4 a4 g#4 e4@2, e5@3 ~ b4@3 ~",
  C: "a4@2 g4 g#4 e4@2 d4@2 e4@2 g4@2 b4@2 b4@2",
  D: "[e5@2 d5@2 e5@2 d5@2 e5@2 e5@4 a5@4 a5@2 g5@2 e5@2 d5@2 e5@2 b4@6 b4@2 e5 b4 a4@2 g4@2 e4@2 a4@2 g4@2]/3",
  E: "c#4 ~ g#4@2 c#5@2 b4@2 c#5@2 b4@2 c#5@2 g#4@2", F: "~ f#4 e4 c#4 f#4@2 e4@2 c#4@2 e4@2 e4@2 f#4@2",
  G: "~@2 b4@2 g#4 [e4,f#4] c#4@2 f#4@2 e4@2 e4@2 a4@2, g#4 ~@3", H: "~@8 d5@4 b4 a4 g4 e4, b4@3 b4@3 ~@2, ~ d5@3 ~@4",
  I: "a4 g4 e4 d4 e4 e3@2 e2", J: "~ [d4,f#4,b4] [e4,g#4,c#5]!3 [d4,f#4,b4] [e4,g#4,c#5] [d4,f#4,b4]",
  K: "g#4!3 a4!3 a#4!2", L: "b4!2 c5!2 c#5!2 d5!2", M: "d#5@2 d#5@2 e5@2 a5 [e5,g5] e5@2 e5@2 e5@2 e5@2",
  N: "b5@2 a5@2 a5 g5 e5 d5", O: "e5 d6@5 b5 a#5", P: "a5 g#5 f#5 e5 f#5 e5 c#5 e5",
  Q: "~@2 b5@2 g#5 f#5 e5 c#5 e5@2 e5@2 f#5@2 e5@2, g#5 ~@3", R: "~@3 b5 ~@4 g#5 f#5 e5 c#5 f#5@2 e5@2, ~ g#5@3 ~@4",
  S: "d5@3 ~@5",
})).s("gm_distortion_guitar").gain(0.45).pan(0.7)

// drums · kick
const kick = s("bd").struct(`<
  ~@3 A ~ A ~ A B C B C B C B C B C B C B C B C D@3 E D@3 F G A ~ A D C D C D C D C D C D C D C D C D H@6 I G ~ D C D C
  D C D C D C D C D C D H@2 E D H@2 J G A G A D C D C D C D C D C D C D C D C D C D C K ~@7
>`.pickRestart({
  A: "~ x ~@2 x ~@3", B: "x ~@2 x!3 ~ x", C: "~ x ~ x!2 ~ x ~", D: "x!2 ~ x!3 ~ x", E: "~ x ~ x!2 ~@2 x",
  F: "~ x ~ x ~@3 x", G: "x", H: "~ x ~ x!3 ~ x", I: "~ x ~@5 x", J: "~ x ~@6", K: "x!2 ~@6",
})).gain(0.32).pan(0.7)

// drums · kick · soft notes
const kick_soft = s("bd").struct("<~@108 A B C B C B C B>".pickRestart({
  A: "~@3 x!3 ~ x", B: "~ x ~ x!2 ~ x ~", C: "x!2 ~ x!3 ~ x",
})).gain(0.12).pan(0.7)

// drums · snare
const snare = s("sd").struct(`<
  ~@2 A B A B A C D E D E D E D E D E D E D E D E D@3 F D@3 G A B A C D E D E D E D E D E D E D E D E D@7 H A I D E D E
  D E D E D E D E D E D@3 J D@3 K A B A C D E D E D E D E D E D E D E D E D E D E ~@8
>`.pickRestart({
  A: "x", B: "~ x ~@2 x ~@3", C: "~ x ~@2 x ~ x ~", D: "~ x ~ x", E: "x ~@2 x", F: "~@4 x ~@5 x!3 ~@3", G: "~ x ~@2",
  H: "~@4 x ~ x!3 ~ x!3 ~@3", I: "~@3 x", J: "~@4 x ~@3 x ~ x!3 ~@3", K: "~@4 x ~ x!3 ~ x!3 ~@2 x",
})).gain(0.32).pan(0.7)

// drums · snare · soft notes
const snare_soft = s("sd").struct("<~@108 A B A B A B A B>".pickRestart({
  A: "~ x ~ x", B: "x ~@2 x",
})).gain(0.12).pan(0.7)

// drums · hihat
const hihat = s("hh").struct(`<
  ~@3 A ~ A ~ A B C D C D C D C D C D C D C D C D B@2 E B@3 E F A ~@2 B C D C D C D C D C D C D C D C ~@10 B C D C B C D
  C B C D C D C B@4 ~@3 G ~ A ~ A B C D C B C D C B C D C B C D C B C D C ~@8
>`.pickRestart({
  A: "~@3 x", B: "~ x!3", C: "x ~@2 x", D: "x!4", E: "~ x!2 ~", F: "x", G: "~ x ~@2",
})).gain(0.32).pan(0.7)

// drums · hihat · soft notes
const hihat_soft = s("hh").struct("<~@108 A B C B A B C B>".pickRestart({
  A: "~ x!3", B: "x ~@2 x", C: "x!4",
})).gain(0.12).pan(0.7)

// drums · mid tom
const mid_tom = s("mt").struct("<~@31 [~@8 x ~ x!3 ~@3] ~@84>").gain(0.32).pan(0.7)

// drums · open hat
const open_hat = s("oh").struct("<~@3 A ~ A ~ A ~@25 A ~@51 A ~ A ~@28>".pickRestart({
  A: "~ x",
})).gain(0.36).pan(0.7)

// drums · crash
const crash = s("cr").struct(`<
  ~@3 A ~ A ~ A B C ~ C ~ C ~ C ~ C ~ C ~ C ~ C D@3 ~ E D@2 ~@2 A ~ A B C ~ C ~ C ~ C ~ C ~ C ~ C ~ C F G@6 H ~@2 B C ~
  C B C ~ C B C ~ C ~ C E D@2 ~ I J@2 ~@2 A ~ A B C ~ C B C ~ C B C ~ C B C ~ C B C ~ C B ~@7
>`.pickRestart({
  A: "~ x ~@6", B: "x", C: "~ x ~@2 x ~@3", D: "~@7 x", E: "x ~@6 x", F: "x!8", G: "~ x!7", H: "x!4 ~@4",
  I: "x ~ x ~ x ~ x!2", J: "~@2 x ~ x ~ x!2",
})).gain(0.32).pan(0.7)

// drums · crash · soft notes
const crash_soft = s("cr").struct("<~@109 [~ x ~@2 x ~@3] ~ [~ x ~@2 x ~@3] x [~ x ~@2 x ~@3] ~ [~ x ~@2 x ~@3]>")
  .gain(0.12).pan(0.7)

// drums · ride
const ride = s("rd").struct("<~@35 [~ x] ~@23 [~ x] ~@56>").gain(0.36).pan(0.7)

stack(
  distortion_guitar, bass, bass_soft, overdriven_guitar, distortion_guitar_2, kick, kick_soft, snare, snare_soft, hihat,
  hihat_soft, mid_tom, open_hat, crash, crash_soft, ride
)