// Birthday — The Beatles
// 145 bpm, 4/4, key E minor. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: pitch bends are ignored
// note: Full arrangement: all 92 bars on a 16-step grid, each part at one level; ghost notes are separate "_soft" parts. Source detail keeps the original performance.
setcpm(145/4)

// Notation: c3@3 lasts 3 steps · ~ is a rest · [c3,e3] is a chord · "a, b" plays two voices at once · [...]/2 spreads a riff over 2 bars.
// A part's distinct bars are riffs (A, B, C...) played in order: edit a riff to change every repeat.

// other · synth brass 1 · "SYNBRASS 1"
const synth_brass_1 = note(`<
  ~@2 A B A B C D A B E F G B A B A B C D A B E F G B ~@8 H@8 I J I J I J I K L@2 A B A B C D A B E F G B M N O P I J I
  J I J I K L@2 A B A B C D A B E F G B A Q
>`.pickRestart({
  A: "a3 ~ a3@2 c#4@2 e4@2 g4@2 f#4@4 e4@2", B: "a3 ~@7", C: "d4 ~ d4@2 f#4@2 a4@2 c5 ~ b4@4 a4@2", D: "d4 ~@7",
  E: "e4 ~ e4@2 g#4@2 b4@2 d5 ~ c#5@4 b4@2", F: "e4 ~@7", G: "a3 ~ a3@2 c#4@2 e4@2 g4 ~ f#4@4 e4@2", H: "[e3,b3,e4]/2",
  I: "c4 ~ c4@2 e4 ~ e4@2 f4 ~ f4@2 f#4@2 f#4@2", J: "g4 ~ g4@2 f4 ~ f4@2 e4 ~ e4@2 d4@4", K: "g4 g#4 a4 a#4",
  L: "b4/2", M: "e4 ~ e4@2 ~@2 g4@2 ~@2 a4@3 ~ g4@2", N: "a4 g4 e4 d4 c4@3 ~", O: "e4 ~ e4@2 ~@2 g4@2 ~@2 a4@4 c5@2",
  P: "e5 d5 c5 a4 g4@3 ~", Q: "a3@3 ~",
})).s("gm_synth_brass_1").gain(0.38).pan(0.6)

// chords · synth brass 1 · "SYNBRASS 1"
const synth_brass_1_2 = note(`<
  ~@2 A B A B C D A B E F G B A B A B C D A B E F G B ~@16 H I H I H I H J K@2 A B A B C D A B E F G B L M N O H I H I H
  I H J P@2 A B A B C D A B E F G B A Q
>`.pickRestart({
  A: "a2 ~ a2@2 c#3@2 e3@2 g3@2 f#3@4 e3@2", B: "a2 ~@7", C: "d3 ~ d3@2 f#3@2 a3@2 c4 ~ b3@4 a3@2", D: "d3 ~@7",
  E: "e3 ~ e3@2 g#3@2 b3@2 d4 ~ c#4@4 b3@2", F: "e3 ~@7", G: "a2 ~ a2@2 c#3@2 e3@2 g3 ~ f#3@4 e3@2",
  H: "[c3,g4,c5] ~ [g4,c5] ~ [e3,g4,c5] ~ [g4,c5] ~ [f3,g4,c5] ~ [g4,c5] ~ [g4,c5] ~ [g4,c5] ~, ~ c3 ~ e3 ~ f3 f#3!2", // C5 C C5 Fsus2 C5
  I: "[g3,d4,g4] ~ [d4,g4] ~ [f3,d4,g4] ~ [d4,g4] ~ [e3,d4,g4] ~ [d4,g4] ~ [d4,g4] ~ [d4,g4] ~, ~ g3 ~ f3 ~ e3 d3@2", // G5 G7 G5 Em7 G5
  J: "[e4,g4] ~ [e4,g4] ~ [f4,g#4] ~ [f4,g#4] ~ [f#4,a4] ~ [f#4,a4] ~ [g4,a#4] ~ [g4,a#4] ~, g3 g#3 a3 a#3", // Em Fm F#m Gm
  K: "[b3,f#4]/2", L: "a3 e3 ~ g3 ~ a3@2 ~", M: "a3 g3 e3 d3 c3@3 ~", N: "a3 ~ e3@2 ~@2 g3@2 ~@2 a3@4 c4@2",
  O: "e4@2 d4@2 c4@2 a3@2 g3@7 ~", P: "[b3,f#4]", Q: "a2@13 ~@3",
})).s("gm_synth_brass_1").gain(0.35).pan(0.4)

// bass · english horn · "ENGL.HORN"
const bass = note(`<
  ~@2 A ~ A ~ B ~ A ~ C ~ D ~ A ~ A ~ B ~ A ~ C ~ D ~ E ~@7 F@8 G H G H G H G I J K A ~ A ~ B ~ A ~ C ~ D ~ L M L N G H
  G H G H G I J K A ~ A ~ B ~ A ~ C ~ D ~ A ~
>`.pickRestart({
  A: "a1 ~ a1@2 c#2@2 e2@2 g2@2 f#2@3 ~ e2@2", B: "d2 ~ d2@2 f#2@2 a2@2 c3 ~ b2@3 ~ a2@2",
  C: "e2 ~ e2@2 g#2@2 b2@2 d3 ~ c#3@4 b2@2", D: "a1 ~ a1@2 c#2@2 e2@2 g2 ~ f#2@4 e2@2", E: "a1@3 ~", F: "e2!8",
  G: "c2 ~ c2@2 e2@2 e2@2 f2 ~ f2@2 f#2@2 f#2@2", H: "g2 ~ g2@2 f2@2 f2@2 e2@2 e2@2 d2@2 d2@2",
  I: "g2 ~ g2@2 g#2@2 g#2@2 a2@2 a2@2 a#2@2 a#2@2", J: "b2!4 b2@4", K: "b2 ~ b2@2 a2 ~ a2@2 g#2 ~ g#2@2 f#2@4",
  L: "a2 ~ e2@2 ~@2 g2@2 ~@2 a2@2 ~@4", M: "a2 g2 e2 d2 c2@3 ~", N: "e3@2 d3@2 c3@2 a2@2 g2@7 ~",
})).s("gm_electric_bass_finger").gain(0.62)

// bass · english horn · "ENGL.HORN" · soft notes
const bass_soft = note(`<
  ~@3 A ~ B ~ C ~ B ~ D ~ B ~ A ~ B ~ C ~ B ~ D ~ B ~@27 A ~ B ~ C ~ B ~ D ~ B ~@15 A ~ B ~ C ~ B ~ D ~ B ~ E
>`.pickRestart({
  A: "a1!2 c#2 e2 g2 f#2@2 e2", B: "a1 ~ a1@2 c#2@2 e2@2 g2@2 f#2@4 e2@2", C: "d2 ~ d2@2 f#2@2 a2@2 c3@2 b2@4 a2@2",
  D: "e2 ~ e2@2 g#2@2 b2@2 d3@2 c#3@4 b2@2", E: "a1@3 ~",
})).s("gm_electric_bass_finger").gain(0.21)

// chords · vibraphone
const vibraphone = note(`<
  ~@42 A B A B A B A C D@2 ~ E F E G H I J K L K M ~@4 A B A B A B A C D@2 ~ E F E G H I J K L K M ~@2
>`.pickRestart({
  A: "c5@6 g4@5 ~ e4@2 e4@2", B: "g4 ~ g4@2 f4@2 g4@6 ~@4", C: "g4 ~ g4@2 g#4 ~ g#4@2 a4 ~ a4@2 a#4 ~ a#4@2",
  D: "[[f#4,b4]@15 ~]/2", E: "[a4,c#5]!2 [g4,b4] [c5,e5]@2 [a4,c#5]@2 ~", F: "~@7 [e4,g4]", G: "~@7 [f4,a4]",
  H: "[f#4,a4]@2 [f#4,a4]@2 [e4,g4,c5]@2 [e4,a4,c5]@4 [f#4,a4,c5]@5 ~", I: "~@7 [c#4,e4]",
  J: "[e4,a4]@2 [e4,a4]@2 [e4,a4]@2 [c#4,g4]@2 [g4,c5]@4 [e4,a4]@3 ~", K: "~@7 e4",
  L: "[e4,a4]!2 [d4,g4] [g4,c5]@2 [e4,a4]@2 ~", // A5 G5 C5 A5
  M: "[e4,a4]@2 [e4,a4]@2 [e4,a4]@2 [d4,g4]@2 [g4,c5]@4 [e4,a4]@3 ~, ~@8 e5@7 ~", // A5 G5 C5 A5
})).s("gm_vibraphone").gain(0.52).pan(0.4)

// other · acoustic guitar nylon · "NYLON GTR"
const acoustic_guitar_nylon = note(`<
  ~@14 A B C D A E C F A D C G ~@10 H I H I J K L M L M L M L N O@2 ~@16 L M L M L M L N O@2 ~@14
>`.pickRestart({
  A: "~@7 e3", B: "a3!2 g3 c4@2 a3@2 ~", C: "~@6 e3!2", D: "a3!2 g3 c4@2 a3 ~@2", E: "a3@2 a3@2 g3@2 c4@4 a3@5 ~",
  F: "a3@3 a3 a3@2 g3@2 c4@4 a3@2 ~@2", G: "a3@2 g3 c4@2 a3 ~@2", H: "~@2 e4!3 d4!3", I: "d4@2 c#4 c#4@2 b3@2 ~",
  J: "~@2 [e4,b4]!3 [d4,a4]!3", K: "[d4,a4]@4 [c#4,g#4]@2 [c#4,g#4]@4 [b3,f#4]@5 ~", L: "e4@6 c4@5 ~ g3@2 g3@2",
  M: "b3 ~ b3@2 a3@2 b3@6 ~@4", N: "b3 ~ b3@2 c4 ~ c4@2 c#4 ~ c#4@2 d4 ~ d4@2", O: "[[d#4,f#4]@15 ~]/2",
})).s("gm_acoustic_guitar_nylon").gain(0.42).pan(0.6)

// drums · kick
const kick = s("bd").struct("<[x ~@6 x!2 ~ x ~@5]!64 ~@4 [x ~@6 x!2 ~ x ~@5]!23 x>").gain(0.64)

// drums · snare
const snare = s("sd").struct("<A@41 B A B A C A B A@3 B A@11 B ~@4 A B A C A B A@3 B A@13 D>".pickRestart({
  A: "x!4", B: "x ~@3 x ~@3 x ~@3 x!4", C: "~ x ~ x", D: "x",
})).gain(0.64)

// drums · clap
const clap = s("cp").struct("<~@26 [x!2]!8 ~@58>").gain(0.57)

// drums · low tom
const low_tom = s("lt").struct("<~ A ~@39 B ~@9 C ~@15 D ~@9 C ~@14>".pickRestart({
  A: "~@11 x ~@2 x!2", B: "~@4 x!2 ~@2", C: "~@8 x!4 ~@4", D: "~@7 x ~@3 x ~@4",
})).gain(0.64)

// drums · hihat
const hihat = s("hh").struct("<[x!8]!64 ~@4 [x!8]!23 x>").gain(0.43)

// drums · mid tom
const mid_tom = s("mt").struct("<~ A ~@11 B ~@11 C ~@7 D ~@11 C ~@5 E ~@15 F ~@3 C ~@5 E ~@11 B ~@2>".pickRestart({
  A: "~@9 x ~@3 x ~@2", B: "~@12 x!4", C: "~@14 x!2", D: "x!8", E: "~@4 x!4 ~@8", F: "~@2 x!2",
})).gain(0.64)

// drums · high tom
const high_tom = s("ht").struct("<~ A ~@11 B ~@11 C ~@7 D ~@11 E ~@5 F ~@15 A ~@3 E ~@5 F ~@11 B ~@2>".pickRestart({
  A: "~@2 x!2", B: "~@8 x!4 ~@4", C: "~@14 x!2", D: "x!8", E: "~@12 x!2 ~@2", F: "x!4 ~@12",
})).gain(0.64)

// drums · crash
const crash = s("cr").struct(`<
  ~@2 A ~@11 A ~@11 A ~@7 A ~@7 A ~ A ~ A ~ A ~ A ~ A ~@11 A ~@3 A ~ A ~ A ~ A ~ A ~ A ~@11 A@2
>`.pickRestart({
  A: "x",
})).gain(0.71)

// drums · tambourine
const tambourine = s("tb").struct("<~@26 [x!16]!8 ~@58>").gain(0.57)

// drums · cowbell
const cowbell = s("cb").struct("<[x!4]!64 ~@4 [x!4]!23 ~>").gain(0.64)

stack(
  synth_brass_1, synth_brass_1_2, bass, bass_soft, vibraphone, acoustic_guitar_nylon, kick, snare, clap, low_tom, hihat,
  mid_tom, high_tom, crash, tambourine, cowbell
)