// Super Mario Bros. 3 Underground — Koji Kondo
// 200 bpm, 4/4, key A# major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: Transcription provider: pdmx. https://musescore.com/score/5466193; license: https://creativecommons.org/publicdomain/zero/1.0/
// note: Full arrangement: all 32 bars on a 16-step grid, each part at one level. Source detail keeps the original performance.
setcpm(200/4)

// Notation: c3@3 lasts 3 steps · ~ is a rest.
// A part's distinct bars are riffs (A, B, C...) played in order: edit a riff to change every repeat.

// drums · kick
const kick = s("bd").struct("<A B C D A B C D A B C D A B C D A B C D A B C D A B C D A B C D>".pickRestart({
  A: "x", B: "x!3 ~@5", C: "x ~@6 x", D: "~ x ~ x ~@4",
})).gain(0.3)

// drums · snare
const snare = s("sd").struct("<A@3 B A@3 B A@3 B A@3 B A@3 B A@3 B A@3 B A@3 B>".pickRestart({
  A: "~ x", B: "~@4 x ~ x!2",
})).gain(0.3)

// drums · pedal hat
const pedal_hat = s("hh").struct("x!8").gain(0.3)

stack(kick, snare, pedal_hat)