// Runaround Sue — Dion
// 147 bpm, 4/4, key D major. Source: mcgill.
// Generated by strudelify. One cycle = one bar.
setcpm(147/4)

const chords = arrange(
  // intro (8 bars)
  [8, "<D!2 Bm!2 G!2 A!2>"],
  // chorus (16 bars)
  [16, "<D!2 Bm!2 G!2 A!2 D!2 Bm!2 G!2 [A ~@3] ~>"],
  // chorus (16 bars)
  [16, "<D!2 Bm!2 G!2 [A ~@3] ~ D!2 Bm!2 G!2 [A ~@3] ~>"],
  // chorus (8 bars)
  [8, "<D!2 Bm!2 G!2 [A ~@3] ~>"],
  // bridge (8 bars)
  [8, "<G!2 D!2 G!2 [A ~@3] ~>"],
  // chorus (16 bars)
  [16, "<D!2 Bm!2 G!2 [A ~@3] ~ D!2 Bm!2 G!2 [A ~@3] ~>"],
  // bridge (8 bars)
  [8, "<G!2 D!2 G!2 [A ~@3] ~>"],
  // chorus (8 bars)
  [8, "<D!2 Bm!2 G!2 A!2>"],
  // chorus (4 bars)
  [4, "<D!2 Bm!2>"],
  // fadeout (4 bars)
  [4, "<G!2 A!2>"],
)
const bassline = arrange(
  [8, "<d2!2 b2!2 g2!2 a2!2>"],
  [16, "<d2!2 b2!2 g2!2 a2!2 d2!2 b2!2 g2!2 [a2 ~@3] ~>"],
  [16, "<d2!2 b2!2 g2!2 [a2 ~@3] ~ d2!2 b2!2 g2!2 [a2 ~@3] ~>"],
  [8, "<d2!2 b2!2 g2!2 [a2 ~@3] ~>"],
  [8, "<g2!2 d2!2 g2!2 [a2 ~@3] ~>"],
  [16, "<d2!2 b2!2 g2!2 [a2 ~@3] ~ d2!2 b2!2 g2!2 [a2 ~@3] ~>"],
  [8, "<g2!2 d2!2 g2!2 [a2 ~@3] ~>"],
  [8, "<d2!2 b2!2 g2!2 a2!2>"],
  [4, "<d2!2 b2!2>"],
  [4, "<g2!2 a2!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)