// Rock And Roll Never Forgets — Bob Seger
// 157 bpm, 4/4, key E major. Source: mcgill.
// Generated by strudelify. One cycle = one bar.
setcpm(157/4)

const chords = arrange(
  // intro (8 bars)
  [8, "<E!2 A [~ Em E@2] E!2 A [~ Em E@2]>"],
  // verse (22 bars)
  [22, "<F#7!2 E!2 F#7!2 E!2 A E A E A E B7!2 F#7!2 F# B E!2>"],
  // verse (22 bars)
  [22, "<F#7!2 E!2 F#7!2 E!2 A E A E A E B7!2 F#7!2 F# B E!2>"],
  // chorus (10 bars)
  [10, "<A E A E A E B7!4>"],
  // solo (30 bars)
  [30, "<F#7!2 E!2 F#7!2 E!2 A E A E A E B7!2 F#7!2 F# B E!2 F# B E!2 F# B E!2>"],
  // interlude (8 bars)
  [8, "<E!2 A [~ Em E@2] E!2 A [~ Em E@2]>"],
  // chorus (8 bars)
  [8, "<E!2 A E!3 A E>"],
  // solo (28 bars)
  [28, "<E!2 A E!3 A E!3 A E!3 A E!3 A E!3 A [A@2 E@2] E!4>"],
  // outro (1 bars)
  [1, "<C>"],
)
const bassline = arrange(
  [8, "<e2!2 a2 [~ g2 e2@2] e2!2 a2 [~ g2 e2@2]>"],
  [22, "<f#2!2 e2!2 f#2!2 e2!2 a2 e2 a2 e2 a2 e2 b2!2 f#2!3 b2 e2!2>"],
  [22, "<f#2!2 e2!2 f#2!2 e2!2 a2 e2 a2 e2 a2 e2 b2!2 f#2!3 b2 e2!2>"],
  [10, "<a2 e2 a2 e2 a2 e2 b2!4>"],
  [30, "<f#2!2 e2!2 f#2!2 e2!2 a2 e2 a2 e2 a2 e2 b2!2 f#2!3 b2 e2!2 f#2 b2 e2!2 f#2 b2 e2!2>"],
  [8, "<e2!2 a2 [~ g2 e2@2] e2!2 a2 [~ g2 e2@2]>"],
  [8, "<e2!2 a2 e2!3 a2 e2>"],
  [28, "<e2!2 a2 e2!3 a2 e2!3 a2 e2!3 a2 e2!3 a2 e2!3 a2 [a2@2 e2@2] e2!4>"],
  [1, "<c2>"],
)

// 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)