// Dum Dum — Brenda Lee
// 125 bpm, 4/4, key Db major. Source: mcgill.
// Generated by strudelify. One cycle = one bar.
setcpm(125/4)

const chords = arrange(
  // intro (4 bars)
  [4, "<Db7 Gb7 Db7 Ab7>"],
  // chorus (8 bars)
  [8, "<Db7 [Gb7@2 Db7@2] Db7 [Gb7@2 Db7@2] Db7 [Gb7@2 Db7@2] Ab7 ~>"],
  // verse (8 bars)
  [8, "<Db7 [Gb7@2 Db7@2] Db7 [Gb7@2 Db7@2] Db7 Gb Ab7 ~>"],
  // chorus (8 bars)
  [8, "<Db7 [Gb7@2 Db7@2] Db7 [Gb7@2 Db7@2] Db7 [Gb7@2 Db7@2] Ab7 ~>"],
  // verse (8 bars)
  [8, "<Db7 [Gb7@2 Db7@2] Db7 [Gb7@2 Db7@2] Db7 Gb Ab7 ~>"],
  // chorus (8 bars)
  [8, "<Db7 [Gb7@2 Db7@2] Db7 [Gb7@2 Db7@2] Db7 [Gb7@2 Db7@2] Ab7 ~>"],
  // solo (8 bars)
  [8, "<Db7 [Gb7@2 Db7@2] Db7 [Gb7@2 Db7@2] Db7 [Gb7@2 Db7@2] Ab7 ~>"],
  // verse (8 bars)
  [8, "<Db7 [Gb7@2 Db7@2] Db7 [Gb7@2 Db7@2] Db7 Gb Ab7 ~>"],
  // chorus (8 bars)
  [8, "<Db7 [Gb7@2 Db7@2] Db7 [Gb7@2 Db7@2] Db7 [Gb7@2 Db7@2] Ab7 ~>"],
  // outro (8 bars)
  [8, "<Db7 [Gb7@2 Db7@2] Db7 [Gb7@2 Db7@2] Db7 [Gb7@2 Db7@2] Ab7 ~>"],
)
const bassline = arrange(
  [4, "<db2 gb2 db2 ab2>"],
  [8, "<db2 [gb2@2 db2@2] db2 [gb2@2 db2@2] db2 [gb2@2 db2@2] ab2 ~>"],
  [8, "<db2 [gb2@2 db2@2] db2 [gb2@2 db2@2] db2 gb2 ab2 ~>"],
  [8, "<db2 [gb2@2 db2@2] db2 [gb2@2 db2@2] db2 [gb2@2 db2@2] ab2 ~>"],
  [8, "<db2 [gb2@2 db2@2] db2 [gb2@2 db2@2] db2 gb2 ab2 ~>"],
  [8, "<db2 [gb2@2 db2@2] db2 [gb2@2 db2@2] db2 [gb2@2 db2@2] ab2 ~>"],
  [8, "<db2 [gb2@2 db2@2] db2 [gb2@2 db2@2] db2 [gb2@2 db2@2] ab2 ~>"],
  [8, "<db2 [gb2@2 db2@2] db2 [gb2@2 db2@2] db2 gb2 ab2 ~>"],
  [8, "<db2 [gb2@2 db2@2] db2 [gb2@2 db2@2] db2 [gb2@2 db2@2] ab2 ~>"],
  [8, "<db2 [gb2@2 db2@2] db2 [gb2@2 db2@2] db2 [gb2@2 db2@2] ab2 ~>"],
)

// 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)