// Shapes Of Things — The Yardbirds
// 134 bpm, 4/4, key G major. Source: mcgill.
// Generated by strudelify. One cycle = one bar.
setcpm(134/4)

const chords = arrange(
  // intro (2 bars)
  [2, "<F!2>"],
  // verse (8 bars)
  [8, "<G Dm7 G Dm7 G Dm7 F!2>"],
  // verse (8 bars)
  [8, "<G Dm7 G Dm7 G Dm7 F!2>"],
  // chorus (9 bars)
  [9, "<C Bb C Bb C Bb!2 D!2>"],
  // verse (8 bars)
  [8, "<G Dm7 G Dm7 G Dm7 F!2>"],
  // verse (8 bars)
  [8, "<G Dm7 G Dm7 G Dm7 F!2>"],
  // chorus (9 bars)
  [9, "<C Bb C Bb C Bb!2 D!2>"],
  // solo (17 bars)
  [17, "<G F G F G F G F G F G F G F Bb D!2>"],
  // verse (9 bars)
  [9, "<G Dm7 G Dm7 G Dm7 F!2 G>"],
)
const bassline = arrange(
  [2, "<f2!2>"],
  [8, "<g2 d2 g2 d2 g2 d2 f2!2>"],
  [8, "<g2 d2 g2 d2 g2 d2 f2!2>"],
  [9, "<c2 bb2 c2 bb2 c2 bb2!2 d2!2>"],
  [8, "<g2 d2 g2 d2 g2 d2 f2!2>"],
  [8, "<g2 d2 g2 d2 g2 d2 f2!2>"],
  [9, "<c2 bb2 c2 bb2 c2 bb2!2 d2!2>"],
  [17, "<g2 f2 g2 f2 g2 f2 g2 f2 g2 f2 g2 f2 g2 f2 bb2 d2!2>"],
  [9, "<g2 d2 g2 d2 g2 d2 f2!2 g2>"],
)

// 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)