// The Twist — Chubby Checker
// 157 bpm, 4/4, key E major. Source: mcgill.
// Generated by strudelify. One cycle = one bar.
setcpm(157/4)

const chords = arrange(
  // intro (4 bars)
  [4, "<B A E!2>"],
  // verse (12 bars)
  [12, "<E!4 A!2 E!2 B A E!2>"],
  // chorus (12 bars)
  [12, "<E!4 A!2 E!2 B A E!2>"],
  // verse (12 bars)
  [12, "<E!4 A!2 E!2 B A E!2>"],
  // chorus (12 bars)
  [12, "<E!4 A!2 E!2 B A E!2>"],
  // solo (12 bars)
  [12, "<E!4 A!2 E!2 B A E!2>"],
  // verse (12 bars)
  [12, "<E!4 A!2 E!2 B A E!2>"],
  // chorus (12 bars)
  [12, "<E!4 A!2 E!2 B A E!2>"],
  // chorus (12 bars)
  [12, "<E!4 A!2 E!2 B A E E5>"],
)
const bassline = arrange(
  [4, "<b2 a2 e2!2>"],
  [12, "<e2!4 a2!2 e2!2 b2 a2 e2!2>"],
  [12, "<e2!4 a2!2 e2!2 b2 a2 e2!2>"],
  [12, "<e2!4 a2!2 e2!2 b2 a2 e2!2>"],
  [12, "<e2!4 a2!2 e2!2 b2 a2 e2!2>"],
  [12, "<e2!4 a2!2 e2!2 b2 a2 e2!2>"],
  [12, "<e2!4 a2!2 e2!2 b2 a2 e2!2>"],
  [12, "<e2!4 a2!2 e2!2 b2 a2 e2!2>"],
  [12, "<e2!4 a2!2 e2!2 b2 a2 e2!2>"],
)

// 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)