// Through The Years — Kenny Rogers
// 66 bpm, 4/4, key G major. Source: mcgill.
// Generated by strudelify. One cycle = one bar.
setcpm(66/4)

const chords = arrange(
  // intro (4 bars)
  [4, "<[Gadd9@2 Esus Emadd9] [Am7@2 D11 D7] [Bm7@2 Em7@2] [Am7@2 D9sus@2]>"],
  // verse (8 bars)
  [8, "<[G@2 F#7sus B7] [Em@2 Dm7 G7] [Cadd9@2 D7@2] [Bm7@2 D9sus@2] [G@2 F#7sus B7] [Em@2 Dm7 G7] [Cadd9@2 Gadd9@2] [Am7@2 D9sus@2]>"],
  // chorus (9 bars)
  [9, "<[Gadd9@2 Esus Emadd9] [Am7@2 D11 D] [Bm7@2 Em7@2] [Am7@2 D9sus D7] [Bm7@2 E7@2] [Am7@2 D D7] [Bm7@2 E7b9@2] C^9 [Am9@2 D9sus@2]>"],
  // trans (2 bars)
  [2, "<[G@2 E7sus Em7] [Csus C D9sus@2]>"],
  // verse (8 bars)
  [8, "<[G@2 F#7sus B7] [Em@2 Dm7 G7] [Cadd9@2 D7@2] [Bm7@2 D9sus@2] [G@2 F#7sus B7] [Em@2 Dm7 G7] [Cadd9@2 Gadd9@2] [Am7@2 D9sus@2]>"],
  // chorus (9 bars)
  [9, "<[Gadd9@2 Esus Emadd9] [Am7@2 D11 D] [Bm7@2 Em7@2] [Am7@2 D9sus D7] [Bm7@2 E7@2] [Am7@2 D D7] [Bm7@2 E7b9@2] C^9 [Am9@2 D9sus@2]>"],
  // trans (2 bars)
  [2, "<G Eb11>"],
  // chorus (9 bars)
  [9, "<[Abadd9@2 Fsus Fmadd9] [Bbm7@2 Eb11 Eb] [Cm7@2 Fm7@2] [Bbm7@2 Eb9sus Eb7] [Cm7@2 F7@2] [Bbm7@2 Eb Eb7] [Cm7@2 F7b9@2] Db^9 [Bbm9@2 Eb9sus@2]>"],
  // instrumental (9 bars)
  [9, "<[Abadd9@2 Fsus Fmadd9] [Bbm7@2 Eb11 Eb] [Cm7@2 Fm7@2] [Bbm7@2 Eb9sus Eb7] [Cm7@2 F7@2] [Bbm7@2 Eb Eb7] [Cm7@2 F7b9@2] Db^9 [Bbm9@2 Eb9sus@2]>"],
  // chorus (9 bars)
  [9, "<[Abadd9@2 Fsus Fmadd9] [Bbm7@2 Eb11 Eb] [Cm7@2 Fm7@2] [Bbm7@2 Eb9sus Eb7] [Cm7@2 F7@2] [Bbm7@2 Eb Eb7] [Cm7@2 F7b9@2] Db^9 [Bbm9@2 Eb9sus@2]>"],
  // fadeout (9 bars)
  [9, "<[Abadd9@2 Fsus Fmadd9] [Bbm7@2 Eb11 Eb] [Cm7@2 Fm7@2] [Bbm7@2 Eb9sus Eb7] [Cm7@2 F7@2] [Bbm7@2 Eb Eb7] [Cm7@2 F7b9@2] Db^9 [Bbm9@2 Eb9sus@2]>"],
)
const bassline = arrange(
  [4, "<[g2@2 e2@2] [a2@2 d2 c2] [b2@2 e2@2] [a2@2 d2@2]>"],
  [8, "<[g2@2 f#2 b2] [e2@2 d2 g2] c2 [b2@2 d2@2] [g2@2 f#2 b2] [e2@2 d2 g2] [c2@2 b2@2] [a2@2 d2@2]>"],
  [9, "<[g2@2 e2@2] [a2@2 d2 c2] [b2@2 e2@2] [a2@2 d2 c2] [b2@2 e2@2] [a2@2 d2 c2] [b2@2 e2@2] c2 [a2@2 d2@2]>"],
  [2, "<[g2@2 e2@2] [c2@2 d2@2]>"],
  [8, "<[g2@2 f#2 b2] [e2@2 d2 g2] c2 [b2@2 d2@2] [g2@2 f#2 b2] [e2@2 d2 g2] [c2@2 b2@2] [a2@2 d2@2]>"],
  [9, "<[g2@2 e2@2] [a2@2 d2 c2] [b2@2 e2@2] [a2@2 d2 c2] [b2@2 e2@2] [a2@2 d2 c2] [b2@2 e2@2] c2 [a2@2 d2@2]>"],
  [2, "<g2 eb2>"],
  [9, "<[ab2@2 f2@2] [bb2@2 eb2 db2] [c2@2 f2@2] [bb2@2 eb2 db2] [c2@2 f2@2] [bb2@2 eb2 db2] [c2@2 f2@2] db2 [bb2@2 eb2@2]>"],
  [9, "<[ab2@2 f2@2] [bb2@2 eb2 db2] [c2@2 f2@2] [bb2@2 eb2 db2] [c2@2 f2@2] [bb2@2 eb2 db2] [c2@2 f2@2] db2 [bb2@2 eb2@2]>"],
  [9, "<[ab2@2 f2@2] [bb2@2 eb2 db2] [c2@2 f2@2] [bb2@2 eb2 db2] [c2@2 f2@2] [bb2@2 eb2 db2] [c2@2 f2@2] db2 [bb2@2 eb2@2]>"],
  [9, "<[ab2@2 f2@2] [bb2@2 eb2 db2] [c2@2 f2@2] [bb2@2 eb2 db2] [c2@2 f2@2] [bb2@2 eb2 db2] [c2@2 f2@2] db2 [bb2@2 eb2@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)