// Sara Smile — Daryl Hall & John Oates
// 75 bpm, 4/4, key D minor. Source: mcgill.
// Generated by strudelify. One cycle = one bar.
setcpm(75/4)

const chords = arrange(
  // intro (4 bars)
  [4, "<[Dm7@2 Am7@2] [Gm7@2 C9sus@2] [Dm7@2 Am7@2] [Gm7@2 C9sus@2]>"],
  // verse (8 bars)
  [8, "<Dm7 Am Bb^9 [A9sus@2 A@2] Dm7 Am Bb^9 [A9sus@2 A@2]>"],
  // pre-chorus (6 bars)
  [6, "<[Bb@2 C@2] [A7b9@2 Dm7@2] [Bb@2 C@2] [Eb7@2 Dm7@2] Gm7 ~>"],
  // chorus (4 bars)
  [4, "<[Dm7@2 Am7@2] [Gm7@2 C9sus C#9] [Dm7@2 Am7@2] [Gm7@2 C9sus@2]>"],
  // verse (8 bars)
  [8, "<Dm7 Am Bb^9 [A9sus@2 A@2] Dm7 Am Bb^9 [A9sus@2 A@2]>"],
  // pre-chorus (6 bars)
  [6, "<[Bb@2 C@2] [A7b9@2 Dm7@2] [Bb@2 C@2] [Eb7@2 Dm7@2] Gm7 ~>"],
  // chorus (8 bars)
  [8, "<[Dm7@2 Am7@2] [Gm7@2 C9sus C#9] [Dm7@2 Am7@2] [Gm7@2 C9sus@2] [Dm7@2 Am7@2] [Gm7@2 Csus C#9] [Dm7@2 Am7@2] [Gm7@2 Csus@2]>"],
  // bridge (2 bars)
  [2, "<[Gm7@2 C Dm9] [F@2 Bb C#o]>"],
  // chorus (8 bars)
  [8, "<[Dm7@2 Am7@2] [Gm7@2 C9sus C#9] [Dm7@2 Am7@2] [Gm7@2 C9sus@2] [Dm7@2 Am7@2] [Gm7@2 C9sus C#9] [Dm7@2 Am7@2] [Gm7@2 C9sus@2]>"],
  // fadeout (3 bars)
  [3, "<[Dm7@2 Am7@2] [Gm7@2 C9sus C#9] [Dm7@2 Am7@2]>"],
)
const bassline = arrange(
  [4, "<[d2@2 a2@2] [g2@2 c2@2] [d2@2 a2@2] [g2@2 c2@2]>"],
  [8, "<d2 c2 bb2 a2 d2 c2 bb2 a2>"],
  [6, "<[bb2@2 c2@2] [c#2@2 d2@2] [bb2@2 c2@2] [eb2@2 d2@2] g2 ~>"],
  [4, "<[d2@2 a2@2] [g2@2 c2 c#2] [d2@2 a2@2] [g2@2 c2@2]>"],
  [8, "<d2 c2 bb2 a2 d2 c2 bb2 a2>"],
  [6, "<[bb2@2 c2@2] [c#2@2 d2@2] [bb2@2 c2@2] [eb2@2 d2@2] g2 ~>"],
  [8, "<[d2@2 a2@2] [g2@2 c2 c#2] [d2@2 a2@2] [g2@2 c2@2] [d2@2 a2@2] [g2@2 c2 c#2] [d2@2 a2@2] [g2@2 c2@2]>"],
  [2, "<[g2@2 c2 d2] [f2@2 bb2 c#2]>"],
  [8, "<[d2@2 a2@2] [g2@2 c2 c#2] [d2@2 a2@2] [g2@2 c2@2] [d2@2 a2@2] [g2@2 c2 c#2] [d2@2 a2@2] [g2@2 c2@2]>"],
  [3, "<[d2@2 a2@2] [g2@2 c2 c#2] [d2@2 a2@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)