// Serve the Servants — Nirvana
// 120 bpm, 4/4, key D# major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: pitch bends are ignored
// note: Full arrangement: all 103 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 · [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 · overdriven guitar
const overdriven_guitar = note(`<
  ~ A@2 B C D E B C D E B C D E B C D E B C D E B C D F G H G H G H G I J K L@2 B C D E B C D E B C D E B C D F G H G H
  G H G I J K L@2 B C D E B C D E B C D E B C D E G H G H G H G I G H G H G H G I J K L@2
>`.pickRestart({
  A: "[~@5 c4@3, [eb2,db3,eb3,g3], c4@5 ~@3, ~ f4]/2", B: "~@7 db3, bb2@4 ~ bb2@3, ~ d3@2 ~, ~@3 ab3@3 ab3@2",
  C: "eb3@2 ~@5 eb3, ~@2 eb3@3 eb3@2 ~, ~@3 db4@3 db4@2", D: "[f2,c3]@2 ~ [c4,eb4]@2 [c4,eb4]!2 ~, ~@3 f2@4 ~",
  E: "[eb2,bb2]@2 ~ [c4,eb4]@2 [c4,eb4]!2 ~, ~@3 eb2@4 ~", F: "[eb2,bb2]@2 ~ [c4,eb4]@2 [c4,eb4] [c4,eb4]@2, ~@3 eb2@5",
  G: "[ab2,eb3]@2 eb3 [eb3,ab3,bb4]@2 [eb3,ab3] [eb3,ab3,bb4] [ab2,eb3,bb3], ab3@3 ~@5, ~@2 ab2@3 ab2@2 ~", // Ab5 Ebsus4 Ab5 Ebsus4 Absus2
  H: "[c3,g3]@2 [c3,g3] [c3,g3,c4]@2 [c3,g3,c4]!2 [c3,g3,bb3], c4@3 ~@5", // C5 C7
  I: "[c3,g3]@2 [c3,g3] [c3,g3,c4]@2 [c3,g3,c4]!3, c4@3 ~@5", J: "[f2,c3,f3]!8", K: "[gb2,db3,gb3]!8",
  L: "[g2,d3,g3]/2", // G5
})).s("gm_overdriven_guitar").gain(0.64)

// bass · electric bass finger
const bass = note(`<
  ~@3 A B C D A B C D A B C D A B C D A B C D A B C E F G F G F G F G H I J@2 A B C D A B C D A B C D A B C E F G F G F
  G F G H I J@2 A B C D A B C D A B C D A B C D F G F G F G F G F G F G F G F G H I J@2
>`.pickRestart({
  A: "bb1@3 bb1@2 bb1@3", B: "eb1@3 eb1@2 eb1@3", C: "f1@2 ~ f1@4 ~", D: "eb1@2 ~ eb1@4 ~", E: "eb1@2 ~ eb1@5",
  F: "ab1@3 ab1@2 ab1!2 bb1", G: "c2@3 c2@2 c2!2 bb1", H: "f1!8", I: "gb1!8", J: "g1/2",
})).s("gm_electric_bass_finger").gain(0.64)

// other · overdriven guitar
const overdriven_guitar_2 = note("<~@66 A B C D E F G H I J K L M N O P Q ~@20>".pickRestart({
  A: "e5", B: "a5@3 bb5@3 bb5@2 bb5@2 bb5@2 bb5@2 bb5@2", C: "bb5!5 a5 ab5 g5",
  D: "bb5 ab5 f5@2 f5@2 f5@2 f5@2 f5@2 f5@2 f5@2", E: "eb5@3 eb6@5", F: "a5@3 bb5@3 bb5@2 bb5@2 a5@2 ab5@2 g5@2",
  G: "a5 bb5 a5 bb5@2 bb5!3", H: "ab5 bb5!4 f5!3", I: "eb5 f5!4 db5!2 bb4", J: "a5@3 bb5@3 c6@2 db6@2 d6@2 eb6@2 e6@2",
  K: "bb5!2 ab5 bb5@2 bb5!3", L: "f5!8", M: "bb5!8", N: "bb5@3 g5@3 bb5@2 g5@2 ab5@2 bb5@2 g5@2",
  O: "bb5 g5 bb5 g5 bb5!4", P: "ab5!4 f5!4", Q: "eb5!4 bb4!4",
})).s("gm_overdriven_guitar").gain(0.64)

// drums · rim
const rim = s("rim").struct("<[~ x!3] ~@102>").gain(0.64)

// drums · kick
const kick = s("bd").struct("<~ A B C@23 D E@8 F@2 A G C@15 D E@8 F@2 A H C@15 D E@16 F@2 A ~>".pickRestart({
  A: "x", B: "~ x ~ x ~@4", C: "x ~@2 x ~ x ~ x", D: "x ~@2 x ~@4", E: "x ~@4 x ~ x", F: "x!2 ~ x!3 ~ x",
  G: "x ~@2 x ~@2 x ~", H: "x ~ x ~@2 x ~@2",
})).gain(0.64)

// drums · snare
const snare = s("sd").struct("<~ A B C@23 D E@8 C@2 ~ F C@15 D E@8 C@2 ~ G C@15 D E@16 C@2 ~@2>".pickRestart({
  A: "x", B: "x ~@3 x!3 ~", C: "~ x ~ x", D: "~@2 x ~@2 x!2 ~", E: "~@2 x!2 ~@2 x ~", F: "~@3 x!2 ~@3 x ~ x ~@5",
  G: "~@3 x ~@2 x ~",
})).gain(0.64)

// drums · low tom
const low_tom = s("lt").struct("<~@2 [~ x ~@2] ~@23 [~@5 x!2 ~] ~@27 [~@5 x!2 ~] ~@48>").gain(0.64)

// drums · hihat
const hihat = s("hh").struct("<~ A B ~@34 A B ~@26 A C ~@36>".pickRestart({
  A: "~ x!3", B: "x", C: "x ~@2 x",
})).gain(0.64)

// drums · mid tom
const mid_tom = s("mt").struct("<~@2 [x!2 ~@2] ~@100>").gain(0.64)

// drums · open hat
const open_hat = s("oh").struct(`<
  ~@5 A@2 ~@2 A@2 ~@2 A@2 ~@2 A@2 ~@2 A@2 ~@2 A B C D C D C D C E ~@6 A@2 ~@2 A@2 ~@2 A@2 ~@2 A B C D C D C D C E ~@3 F
  ~@2 A@2 ~@2 A@2 ~@2 A@2 ~@2 A B C D C D C D C G C D C D C D C E ~@4
>`.pickRestart({
  A: "~@2 x ~@2 x!3", B: "~@2 x ~@2 x!2 ~", C: "~ x!7", D: "x!8", E: "x!6 ~@2", F: "~ x ~@2 x ~@3", G: "x!7 ~",
})).gain(0.64)

// drums · crash
const crash = s("cr").struct(`<
  ~ A ~ A ~ B@2 A ~ B@2 A ~ B@2 A ~ B@2 A ~ B@2 A ~ B@2 A ~ A ~ A ~ A C D@2 A ~ A ~ B@2 A ~ B@2 A ~ B@2 A ~ B@2 A ~ A ~
  A ~ A C D@2 A ~ A ~ B@2 A ~ B@2 A ~ B@2 A ~ B@2 A ~ A ~ A ~ A ~ A ~ A ~ A ~ A C D@2 A ~
>`.pickRestart({
  A: "x", B: "x ~@2 x ~@4", C: "~@3 x", D: "x!4",
})).gain(0.64)

// drums · ride
const ride = s("rd").struct(`<
  ~@3 A B ~@2 A B ~@2 A B ~@2 A B ~@2 A B ~@2 A B ~@14 A B ~@2 A B ~@2 A B ~@2 A B ~@14 A B ~@2 A B ~@2 A B ~@2 A B ~@22
>`.pickRestart({
  A: "~ x!7", B: "x!8",
})).gain(0.64)

stack(overdriven_guitar, bass, overdriven_guitar_2, rim, kick, snare, low_tom, hihat, mid_tom, open_hat, crash, ride)