// You Can't Judge A Book By The Cover — Bo Diddley
// 114 bpm, 4/4, key Ab major. Source: mcgill.
// Generated by strudelify. One cycle = one bar.
setcpm(114/4)

const chords = arrange(
  // intro (4 bars)
  [4, "<Ab!4>"],
  // verse (8 bars)
  [8, "<Ab!8>"],
  // chorus (8 bars)
  [8, "<Db!2 Ab!2 Eb Db Ab!2>"],
  // trans (14 bars)
  [14, "<Ab!14>"],
  // verse (8 bars)
  [8, "<Ab!8>"],
  // chorus (8 bars)
  [8, "<Db!2 Ab!2 Eb Db Ab!2>"],
  // trans (8 bars)
  [8, "<Ab!8>"],
  // verse (8 bars)
  [8, "<Ab!8>"],
  // chorus (8 bars)
  [8, "<Db!2 Ab!2 D Db Ab!2>"],
  // solo (12 bars)
  [12, "<Ab!12>"],
  // fadeout (4 bars)
  [4, "<Ab!4>"],
)
const bassline = arrange(
  [4, "<ab2!4>"],
  [8, "<ab2!8>"],
  [8, "<db2!2 ab2!2 eb2 db2 ab2!2>"],
  [14, "<ab2!14>"],
  [8, "<ab2!8>"],
  [8, "<db2!2 ab2!2 eb2 db2 ab2!2>"],
  [8, "<ab2!8>"],
  [8, "<ab2!8>"],
  [8, "<db2!2 ab2!2 d2 db2 ab2!2>"],
  [12, "<ab2!12>"],
  [4, "<ab2!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)