// Plateau — Nirvana
// 183.3 bpm, 4/4, key E major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: Full arrangement: all 124 bars on a 16-step grid, each part at one level. Source detail keeps the original performance.
setcpm(183.3/4)

// 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 · acoustic guitar steel
const acoustic_guitar_steel = note(`<
  A@3 B A@3 B A@3 B A C@2 D A@3 B A C@2 D A@3 B A C@2 D E F G F G F G F G A@3 B A C A B A@3 B A C@2 D E F G F G F G F G
  A@3 B A C A B A@3 B A C@2 D A@3 B A C@2 D E@2 H@2 I@2 J@2 I@2 J@2 I@2 J@2 I@2 J@2 I@2 J@2 I@2 J@2 I@2 J@2 K@2
>`.pickRestart({
  A: "[c#3,f#3,f#4] [e3,a3,a4]", B: "[b2,e3,e4]", C: "[c#3,f#3,f#4] [b2,e3,e4]", D: "[f#2,b2,b3]", E: "[d3,g3,g4]",
  F: "[c#3,f#3,f#4]@2 [c#3,f#3,f#4] [c#3,f#3,f#4]@3 [c#3,f#3,f#4]@2", // F#5
  G: "[e3,a3,a4]@2 [e3,a3,a4]!2 [b2,e3,e4]@2 [b2,e3,e4]!2", H: "[e3,a3,a4]", I: "[[d#3,g#3,g#4]@31 ~]/2",
  J: "[[g#3,c#4,c#5]@3 [f#3,b3,b4]@3 [f3,a#3,a#4] [f#3,b3,b4]]/2", K: "[d#3,g#3,g#4]/2",
})).s("gm_acoustic_guitar_steel").gain(0.64)

// bass · acoustic bass
const bass = note(`<
  A@3 B A@3 B A@3 B A@3 B A@3 B A@3 B A@3 B A@3 B C D E D E D E D E A@3 B A@3 B A@3 B A@3 B C D E D E D E D E A@3 B A@3
  B A@3 B A@3 B A@3 B A@3 B F@2 G H I@2 J@2 I@2 J@2 I@2 J@2 I@2 J@2 I@2 J@2 I@2 J@2 I@2 J@2 K@2
>`.pickRestart({
  A: "f#2 g#2 a2@2 f#2 g#2 a2@2", B: "~ e3, e2", C: "~@2 c#3 e3@3 g3@2, g2", D: "f#3", E: "a3 e3",
  F: "~@2 c#3 e3@3 c#3@2, g2", G: "~@2 e3 f#3@3 e3@2, a2", H: "~@2 e3 f#3@3 a3@2, a2", I: "~ b2 d#3 b2, g#2",
  J: "[~ f3 g#3 ~ c#3 f3 a#2 b2, c#3@3 b2@3 ~@2]/2", K: "g#2/2",
})).s("gm_acoustic_bass").gain(0.4)

// bass · acoustic bass
const bass_2 = note(`<
  ~@8 A@3 B C D@2 E A@3 B C D@2 E A@3 B C D@2 E F G H G H G H G H A@3 B A I A B A@3 B C D@2 E F G H G H G H G H A@3 B A
  I A B A@3 B C D@2 E A@3 B C D@2 E F@2 J@2 K@2 L@2 K@2 L@2 K@2 L@2 K@2 L@2 K@2 L@2 K@2 L@2 K@2 L@2 K@2
>`.pickRestart({
  A: "f#2!2 a2@2", B: "e2", C: "f#2 a2", D: "f#2 e2", E: "b1", F: "g1", G: "f#1", H: "a1 e1", I: "f#2!2 e2@2", J: "a1",
  K: "g#1/2", L: "[c#2@3 b1@3 a#1@2]/2",
})).s("gm_acoustic_bass").gain(0.64)

// drums · kick
const kick = s("bd").struct("<~@8 [x!2 ~@2]!114 x ~>").gain(0.64)

// drums · snare
const snare = s("sd").struct("<~@8 [~ x]!114 ~@2>").gain(0.64)

// drums · hihat
const hihat = s("hh").struct(`<
  ~@8 A@3 B A@3 B A@3 B A@3 B A@3 B A@4 B A@3 B A@3 B A@3 B A@3 B A@3 B A@4 B A@3 B A@3 B A@3 B A@3 B A@3 B A@7 B A@5 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@2 ~@2
>`.pickRestart({
  A: "x!4", B: "x!3 ~",
})).gain(0.64)

// drums · mid tom
const mid_tom = s("mt").struct("<~@121 [~@3 x] ~@2>").gain(0.64)

// drums · open hat
const open_hat = s("oh").struct(`<
  ~@11 A ~@3 A ~@3 A ~@3 A ~@3 A ~@4 A ~@3 A ~@3 A ~@3 A ~@3 A ~@3 A ~@4 A ~@3 A ~@3 A ~@3 A ~@3 A ~@3 A ~@7 A ~@5 A ~ A
  ~ A ~ A ~ A ~ A ~ A ~ A ~ A ~ A ~ A ~ A ~ A ~ A ~ A ~@4
>`.pickRestart({
  A: "~@3 x",
})).gain(0.64)

// drums · splash
const splash = s("cr").struct("<~@122 x ~>").gain(0.64)

stack(acoustic_guitar_steel, bass, bass_2, kick, snare, hihat, mid_tom, open_hat, splash)