// Ass Itch — Korn
// 250 bpm, 4/4, key A major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: pitch bends are ignored
// note: duplicate parts dropped: ch 5 distortion guitar (copy of ch 1 overdriven guitar); ch 4 slap bass 2 (copy of ch 3 slap bass 1)
// note: Full arrangement: all 193 bars on a 16-step grid, each part at one level. Source detail keeps the original performance.
setcpm(250/4)

// Notation: c3@3 lasts 3 steps · ~ is a rest · "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.

// other · overdriven guitar
const overdriven_guitar = note(`<
  A B A B A B A B A B A B A B A B A B A B C@8 A B A B A B A B A B A B A B A B C@8 D@16 A B A B A B A E A B A B A B A B A
  B A B A B A B C@8 D@16 F@2 G@2 F@2 G@2 F@2 G@2 F@2 H@6 I J I J I J I J I J I J K@2 L@2 A B A B A B A E D@16 I J I J I
  J I J I J I J I J I J ~
>`.pickRestart({
  A: "a2@4 a2@4 ~@4 a3!2 a3@2", B: "a3!2 a3@2 g#3!2 g#3@2", C: "[~@3 a2@2 a#2@2 b2]/2", D: "[a2!2 ~ a3@5]/2",
  E: "a3!2 a3@2 g#3 ~@3", F: "[a2@3 a3@5]/2", G: "[e3@3 d#3@5]/2", H: "[e3@3 d#3@19 ~@2]/6", I: "b2 a#2!5 b2 a#2",
  J: "a#2!4 b2 a#2 b2 a#2", K: "[b2 a#2!5 b2 a#2 a#2!4 b2 a#2 b2 a#2, a2@3 a3@5]/2",
  L: "[b2 a#2!5 b2 a#2 a#2!4 b2 a#2 b2 a#2, e3@3 d#3@5]/2",
})).s("gm_overdriven_guitar").gain(0.64)

// bass · slap bass 1
const bass = note(`<
  ~@4 A B A B A B A B A B A B A B A B C@8 A B A B A B A B A B A B A B A B C@8 D@16 A ~ A ~ A ~ A ~ A B A B A B A B A B A
  B A B A B C@8 D@16 E@16 ~@4 F G F G F G F G F G F G F G F G A H A H A H A ~ D@16 I G F G F G F G F G F G F G F G ~
>`.pickRestart({
  A: "a1!2 ~@2", B: "~ a1@2 a1!2 a1@3", C: "[~@3 a1@2 a#1@2 b1]/2", D: "[a1!2 ~ a1@5]/2", E: "a1/4",
  F: "b1 a#1!5 b1 a#1", G: "a#1!4 b1 a#1 b1 a#1", H: "~@3 a1", I: "~ a#1!5 b1 a#1, a1 ~@3",
})).s("gm_slap_bass_1").gain(0.64)

// drums · kick
const kick = s("bd").struct(`<
  ~@4 A B A B A B A B A B A B A B A C D@7 E A B A B A B A B A B A B A B A C D@7 E A B A B A B A B A B A B A B A B A ~ A
  ~ A ~ A F A B A B A B A B A B A B A B A C D@7 E A B A B A B A B A B A B A B A B ~@19 F G H G H G H G H G H G H G H G H
  A I A I A I A F A B A B A B A B A B A B A B A B G H G H G H G H G H G H G H G H J
>`.pickRestart({
  A: "x!2 ~@2", B: "~ x ~ x ~ x ~@2", C: "~ x ~ x ~@4", D: "x!4 ~ x!3", E: "x!2 ~@6", F: "~@5 x ~@2",
  G: "x ~@2 x ~@2 x ~", H: "~ x ~ x ~@2 x ~", I: "~@6 x!2", J: "x",
})).gain(0.64)

// drums · snare
const snare = s("sd").struct(`<
  ~@4 A@15 B A@7 C A@15 B A@7 D A@16 ~@7 A@16 B A@7 C A@16 ~@19 A@17 ~@7 A@33 ~
>`.pickRestart({
  A: "~ x", B: "~@8 x!3 ~ x ~@3", C: "~@4 x ~ x ~ x!8", D: "~@2 x!2 ~@4",
})).gain(0.64)

// drums · hihat
const hihat = s("hh").struct(`<
  ~@20 A B A B A B A C ~@16 A B A B A B A C ~@23 D ~@16 A B A B A B A C ~@35 D ~@23 D ~@32 E
>`.pickRestart({
  A: "~ x!3", B: "x!4", C: "x!3 ~", D: "~@5 x ~@2", E: "x",
})).gain(0.64)

// drums · mid tom
const mid_tom = s("mt").struct("<~@51 [~@8 x!8] ~@141>").gain(0.64)

// drums · open hat
const open_hat = s("oh").struct(`<
  ~@4 A@16 B ~ B ~ B ~ B ~ A@16 B ~ B ~ B ~ B ~@17 C@8 A@16 B ~ B ~ B ~ B ~@17 C@15 B ~@3 D A@16 C@8 ~@16 A@16 ~
>`.pickRestart({
  A: "x!4", B: "x", C: "x!2", D: "~ x",
})).gain(0.64)

// drums · crash
const crash = s("cr").struct(`<
  ~@52 A ~@3 A ~@3 A ~@3 A ~@35 A ~@3 A ~@3 A ~@3 A ~@47 A ~@3 A ~@3 A ~@3 A ~@20
>`.pickRestart({
  A: "x",
})).gain(0.64)

// drums · ride
const ride = s("rd").struct(`<
  ~@52 A B@3 A B@3 A B@3 A B@3 ~@32 A B@3 A B@3 A B@3 A B@3 ~@44 A B@3 A B@3 A B@3 A B@3 ~@17
>`.pickRestart({
  A: "~ x!3", B: "x!4",
})).gain(0.64)

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