// It Takes Two — Marvin Gaye,Kim Weston
// 150 bpm, 4/4, key Bb major. Source: mcgill.
// Generated by strudelify. One cycle = one bar.
setcpm(150/4)

const chords = arrange(
  // pre-verse (4 bars)
  [4, "<Bb!4>"],
  // verse (16 bars)
  [16, "<Bb!15 Bb7>"],
  // chorus (12 bars)
  [12, "<Eb!2 F!2 Bb!4 Eb!2 F!2>"],
  // pre-verse (4 bars)
  [4, "<Bb!4>"],
  // verse (16 bars)
  [16, "<Bb!15 Bb7>"],
  // chorus (12 bars)
  [12, "<Eb!2 F!2 Bb!4 Eb!2 F!2>"],
  // pre-verse (4 bars)
  [4, "<Bb!4>"],
  // interlude (8 bars)
  [8, "<Bb!3 Bb7 Eb7!2 F!2>"],
  // pre-verse (4 bars)
  [4, "<Bb!4>"],
  // verse (16 bars)
  [16, "<Bb!15 Bb7>"],
  // chorus (8 bars)
  [8, "<Eb!2 F!2 Bb!4>"],
  // fadeout (8 bars)
  [8, "<Eb!2 F!2 Bb!4>"],
)
const bassline = arrange(
  [4, "<bb2!4>"],
  [16, "<bb2!16>"],
  [12, "<eb2!2 f2!2 bb2!4 eb2!2 f2!2>"],
  [4, "<bb2!4>"],
  [16, "<bb2!16>"],
  [12, "<eb2!2 f2!2 bb2!4 eb2!2 f2!2>"],
  [4, "<bb2!4>"],
  [8, "<bb2!4 eb2!2 f2!2>"],
  [4, "<bb2!4>"],
  [16, "<bb2!16>"],
  [8, "<eb2!2 f2!2 bb2!4>"],
  [8, "<eb2!2 f2!2 bb2!4>"],
)

// 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)