// It's Only Rock 'N Roll (But I Like It) — The Rolling Stones
// 129 bpm, 4/4, key E major. Source: mcgill.
// Generated by strudelify. One cycle = one bar.
setcpm(129/4)

const chords = arrange(
  // intro (4 bars)
  [4, "<E!4>"],
  // verse (19 bars)
  [19, "<E!8 [A G E@2] E!8 [A G E@2] E>"],
  // chorus (18 bars)
  [18, "<A!2 E!2 A!2 [E@2 D@2] [A@2 E@2] A!2 E!2 A!2 [D@2 A@2]!2 E!2>"],
  // verse (19 bars)
  [19, "<E!8 [A G E@2] E!8 [A G E@2] E>"],
  // chorus (18 bars)
  [18, "<A!2 E!2 A!2 [E@2 D@2] [A@2 E@2] A!2 E!2 A!2 [D@2 A@2]!2 E!2>"],
  // bridge (8 bars)
  [8, "<B!2 A!2 B!2 A!2>"],
  // solo (10 bars)
  [10, "<E!8 [A G E@2] E>"],
  // chorus (68 bars)
  [68, "<A!2 E!2 A!2 E!2 A!2 E!2 A!2 [E@2 D@2] [A@2 E@2] A!2 E!2 A!2 E!2 A!2 E!2 A!2 E!2 A!2 E!2 A!2 E!2 A!2 E!2 A!2 E!2 A!2 E!2 A!2 E!2 A!2 E!2 A!2 E!2 A!2 E!2>"],
)
const bassline = arrange(
  [4, "<e2!4>"],
  [19, "<e2!8 [a2 g2 e2@2] e2!8 [a2 g2 e2@2] e2>"],
  [18, "<a2!2 e2!2 a2!2 [e2@2 d2@2] [a2@2 e2@2] a2!2 e2!2 a2!2 [d2@2 a2@2]!2 e2!2>"],
  [19, "<e2!8 [a2 g2 e2@2] e2!8 [a2 g2 e2@2] e2>"],
  [18, "<a2!2 e2!2 a2!2 [e2@2 d2@2] [a2@2 e2@2] a2!2 e2!2 a2!2 [d2@2 a2@2]!2 e2!2>"],
  [8, "<b2!2 a2!2 b2!2 a2!2>"],
  [10, "<e2!8 [a2 g2 e2@2] e2>"],
  [68, "<a2!2 e2!2 a2!2 e2!2 a2!2 e2!2 a2!2 [e2@2 d2@2] [a2@2 e2@2] a2!2 e2!2 a2!2 e2!2 a2!2 e2!2 a2!2 e2!2 a2!2 e2!2 a2!2 e2!2 a2!2 e2!2 a2!2 e2!2 a2!2 e2!2 a2!2 e2!2 a2!2 e2!2 a2!2 e2!2 a2!2 e2!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)