// Perfidia — The Ventures
// 153 bpm, 4/4, key C major. Source: mcgill.
// Generated by strudelify. One cycle = one bar.
setcpm(153/4)

const chords = arrange(
  // intro (5 bars)
  [5, "<[~ G5 A5 B5] [C@2 Em@2] [F@2 G@2] [C@2 Em@2] [F@2 G@2]>"],
  // verse (8 bars)
  [8, "<[C@2 Am@2] [Dm@2 G@2] [C@2 Am@2] [Dm@2 G@2] [C@2 Am@2] [Dm@2 G@2] E7 G>"],
  // chorus (8 bars)
  [8, "<[C@2 Am@2] [Dm@2 G@2] [C@2 Am@2] [Dm@2 G@2] [C@2 Am@2] [Dm@2 G@2] [C@2 F@2] C>"],
  // bridge (8 bars)
  [8, "<F!2 E7!2 F!2 E7 G>"],
  // chorus (8 bars)
  [8, "<[C@2 Am@2] [Dm@2 G@2] [C@2 Am@2] [Dm@2 G@2] [C@2 Am@2] [Dm@2 G@2] [C@2 F@2] [C@2 G@2]>"],
  // interlude (4 bars)
  [4, "<C ~!3>"],
  // intro (4 bars)
  [4, "<[C@2 Em@2] [F@2 G@2] [D@2 F#m@2] [G@2 A@2]>"],
  // verse (8 bars)
  [8, "<[D@2 Bm@2] [Em@2 A@2] [D@2 Bm@2] [Em@2 A@2] [D@2 Bm@2] [Em@2 A@2] F#7 A>"],
  // chorus (8 bars)
  [8, "<[D@2 Bm@2] [Em@2 A@2] [D@2 Bm@2] [Em@2 A@2] [D@2 Bm@2] [Em@2 A@2] [D@2 Gm@2] D>"],
  // bridge (8 bars)
  [8, "<G!2 F#!2 G!2 F# A>"],
  // chorus (8 bars)
  [8, "<[D@2 Bm@2] [Em@2 A@2] [D@2 Bm@2] [Em@2 A@2] [D@2 Bm@2] [Em@2 A@2] [D@2 Gm@2] D>"],
)
const bassline = arrange(
  [5, "<[~ g2 a2 b2] [c2@2 b2@2] [a2@2 g2@2] [c2@2 b2@2] [a2@2 g2@2]>"],
  [8, "<[c2@2 a2@2] [d2@2 g2@2] [c2@2 a2@2] [d2@2 g2@2] [c2@2 a2@2] [d2@2 g2@2] e2 g2>"],
  [8, "<[c2@2 a2@2] [d2@2 g2@2] [c2@2 a2@2] [d2@2 g2@2] [c2@2 a2@2] [d2@2 g2@2] [c2@2 f2@2] c2>"],
  [8, "<f2!2 e2!2 f2!2 e2 g2>"],
  [8, "<[c2@2 a2@2] [d2@2 g2@2] [c2@2 a2@2] [d2@2 g2@2] [c2@2 a2@2] [d2@2 g2@2] [c2@2 f2@2] [c2@2 g2@2]>"],
  [4, "<c2 ~!3>"],
  [4, "<[c2@2 b2@2] [a2@2 g2@2] [d2@2 c#2@2] [b2@2 a2@2]>"],
  [8, "<[d2@2 b2@2] [e2@2 a2@2] [d2@2 b2@2] [e2@2 a2@2] [d2@2 b2@2] [e2@2 a2@2] f#2 a2>"],
  [8, "<[d2@2 b2@2] [e2@2 a2@2] [d2@2 b2@2] [e2@2 a2@2] [d2@2 b2@2] [e2@2 a2@2] [d2@2 g2@2] d2>"],
  [8, "<g2!2 f#2!2 g2!2 f#2 a2>"],
  [8, "<[d2@2 b2@2] [e2@2 a2@2] [d2@2 b2@2] [e2@2 a2@2] [d2@2 b2@2] [e2@2 a2@2] [d2@2 g2@2] d2>"],
)

// 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)