// Hello Hello — The Sopwith "Camel"
// 139 bpm, 4/4, key C major. Source: mcgill.
// Generated by strudelify. One cycle = one bar.
setcpm(139/4)

const chords = arrange(
  // intro (9 bars)
  [9, "<[B@2 C@2] C [C@2 Am@2] Am [Am@2 F@2] [F@2 G@2] [G@2 C@2] [C@2 C5@2] [G7@2 ~@2]>"],
  // chorus (16 bars)
  [16, "<C F C F C F C F G Am D [F@2 D7@2] C G C [C G5 A5 Bb5]>"],
  // pre-chorus (8 bars)
  [8, "<B7 Em B7 Am G C F [D7@2 G7@2]>"],
  // chorus (16 bars)
  [16, "<C Fadd9 C Fadd9 C Fadd9 C Fadd9 G Am D [F@2 D7@2] C G C [C G5 A5 Bb5]>"],
  // pre-chorus (8 bars)
  [8, "<B7 Em B7 Am G C F [D7@2 G7@2]>"],
  // chorus (16 bars)
  [16, "<C Fadd9 C Fadd9 C Fadd9 C Fadd9 G Am D [F@2 D7@2] C G7 [C@2 B Bb] A7>"],
  // fadeout (7 bars)
  [7, "<D7 G7 [C@2 Co Bo] [Bbo Ao Abo Go] [Gbo Fo ~@2] ~ [C7@2 ~@2]>"],
)
const bassline = arrange(
  [9, "<[b2@2 c2@2] c2 [c2@2 a2@2] a2 [a2@2 f2@2] [f2@2 g2@2] [g2@2 c2@2] c2 [g2@2 ~@2]>"],
  [16, "<c2 f2 c2 f2 c2 f2 c2 f2 g2 [a2@2 g2@2] f#2 [f2@2 f#2@2] c2 g2 c2 [c2 g2 a2 bb2]>"],
  [8, "<b2 e2 b2 a2 g2 c2 f2 [d2@2 g2@2]>"],
  [16, "<[c2 g2@3] f2 [c2 g2@3] f2 c2 f2 c2 f2 g2 [a2@2 g2@2] f#2 [f2@2 f#2@2] c2 g2 c2 [c2 g2 a2 bb2]>"],
  [8, "<b2 e2 b2 a2 g2 c2 f2 [d2@2 g2@2]>"],
  [16, "<c2 f2 c2 f2 c2 f2 c2 f2 g2 [a2@2 g2@2] f#2 [f2@2 f#2@2] c2 g2 [c2@2 b2 bb2] a2>"],
  [7, "<d2 g2 [c2@3 b2] [bb2 a2 ab2 g2] [gb2 f2 ~@2] ~ [a#2@2 ~@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)