// Doo Doo Doo Doo Doo (Heartbreaker) — The Rolling Stones
// 111 bpm, 4/4, key E minor. Source: mcgill.
// Generated by strudelify. One cycle = one bar.
setcpm(111/4)

const chords = arrange(
  // intro (8 bars)
  [8, "<E G C E!2 G C E>"],
  // verse (8 bars)
  [8, "<Em7!2 Am Em7!3 Am Em7>"],
  // chorus (8 bars)
  [8, "<Em G C Em!2 G C Em>"],
  // verse (8 bars)
  [8, "<Em7!2 Am Em7!3 Am Em7>"],
  // chorus (16 bars)
  [16, "<Em G C Em!2 G C Em!2 G C Em!2 G C Em>"],
  // solo (8 bars)
  [8, "<Em7!2 Am Em7!3 Am Em7>"],
  // chorus (28 bars)
  [28, "<Em G C Em!2 G C Em!2 G C Em!2 G C Em!2 G C Em!2 G C Em!2 G C Em>"],
  // fadeout (12 bars)
  [12, "<Em G C Em!2 G C Em!2 G C Em>"],
)
const bassline = arrange(
  [8, "<e2 g2 c2 e2!2 g2 c2 e2>"],
  [8, "<e2!2 a2 e2!3 a2 e2>"],
  [8, "<e2 g2 c2 e2!2 g2 c2 e2>"],
  [8, "<e2!2 a2 e2!3 a2 e2>"],
  [16, "<e2 g2 c2 e2!2 g2 c2 e2!2 g2 c2 e2!2 g2 c2 e2>"],
  [8, "<e2!2 a2 e2!3 a2 e2>"],
  [28, "<e2 g2 c2 e2!2 g2 c2 e2!2 g2 c2 e2!2 g2 c2 e2!2 g2 c2 e2!2 g2 c2 e2!2 g2 c2 e2>"],
  [12, "<e2 g2 c2 e2!2 g2 c2 e2!2 g2 c2 e2>"],
)

// chords · gm_piano
const keys = chord(chords).voicing().s("gm_piano").gain(0.8)
// bass · gm_electric_bass_finger
const bass = note(bassline).s("gm_electric_bass_finger").gain(0.9)
// drums
const drums = s("[bd hh] [sd hh] [bd hh] [sd hh]").gain(0.8)

stack(keys, bass, drums)