// Ferry Cross the Mersey — Gerry & The Pacemakers
// 102 bpm, 4/4, key B major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: pitch bends are ignored
// note: Full arrangement: all 62 bars on a 32-step grid, each part at one level. Source detail keeps the original performance.
setcpm(102/4)

// 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.

// chords · acoustic guitar nylon · "NYLON GTR"
const acoustic_guitar_nylon = note(`<
  ~@2 A B C D A B C D A B C E F G H I J K A B C D A B C E F G H I J K L M L M L N O P A B C D A B C E F G H I A B C D C
  D Q ~
>`.pickRestart({
  A: "e3@3 [b3,e4,g#4] [a3,d4,f#4]@2 b4@2", B: "e3@9 ~@3 [b3,e4,g#4]@4 [a3,d4,f#4]@8 b4@8",
  C: "e3@11 ~ [b3,e4,g#4]@4 [a3,d4,f#4]@8 b4@8", D: "e3@8 ~@4 [b3,e4,g#4]@4 [d4,f#4]@8 b4@7 ~, ~@4 a3@3 ~",
  E: "e3@8 ~@4 [b3,e4,g#4]@3 ~ [a3,d4,f#4]@8 b4@7 ~", F: "[g#3,b3,e4]@10 ~@2 [g#3,b3,e4]@9 ~@3 [g#3,b3]@5 ~@3, ~@3 e4",
  G: "[g#3,b3,d#4]@9 ~@3 [g#3,b3,d#4]@9 ~@3 [g#3,b3,d#4]@7 ~", // G#m
  H: "[f#3,a3,c#4]@8 ~@4 [f#3,a3,c#4]@9 ~@3 [f#3,a3,c#4]@7 ~", // F#m
  I: "[f#3,b3,d#4]@8 ~@4 [f#3,b3,d#4]@9 ~@3 [f#3,b3,d#4]@8", // B
  J: "e3@11 ~ [b3,e4,g#4]@2 ~@2 [b3,d4,f#4]@4 ~@4 [d4,f#4,b4]@8", // E Bm
  K: "e3@11 ~ [b3,e4,g#4]@3 ~ [d4,f#4]@6 ~@2 [d4,f#4,b4]@7 ~, ~@16 b3@3 ~@13", L: "[f#3,a3,c#4]!4 [f#3,b3,d#4]!4",
  M: "[g#3,b3,e4]!8", N: "[g#3,b3,d#4]!4 [g#3,b3,e4]!4", O: "[f#3,a3,c#4]!5 [a3,c#4] [f#3,a3,c#4]!2",
  P: "[f#3,b3,d#4]!6 [f#3,b3,d#4]@2", Q: "~ [e4,g#4]@28 ~@3, [e3,b3]",
})).s("gm_acoustic_guitar_nylon").gain(0.27).pan(0.8)

// bass · fretless bass · "FRETLESS"
const bass = note(`<
  ~ A B@3 C B@3 C B@2 D C E F G H B I B@3 C B@2 D C E F G H B I J K L M N O P Q B@3 C B@2 D C E F G H B@3 C B C R ~
>`.pickRestart({
  A: "~@3 b2", B: "e2@3 c#3 b2@2 b1@2", C: "e2@6 c#3@2 b2@4 b1@3 ~", D: "e2@12 c#3@4 b2@8 b1@7 ~",
  E: "e2@2 ~ e2 b1 e2 f#2 g2", F: "g#2@9 ~@3 g#2@4 d#2@7 ~ g#2@4 g2@4", G: "f#2@9 ~@3 f#2@4 c#2@7 ~ f#2@8",
  H: "b1@4 ~@2 b1@2 f#2@4 b1@3 ~", I: "e2@11 ~ c#3@4 b2@8 b1@7 ~", J: "f#2@2 ~ f#2 b2@2 ~ b2",
  K: "e2@8 ~@4 e2@4 b1@7 ~ e2@4 f2@4", L: "f#2@7 ~@5 f#2@4 b2@6 ~@6 b2@4", M: "e2@7 ~@5 e2@4 b1@7 ~ e2@4 f2@4",
  N: "f#2@3 ~@3 f#2@2 b2@2 ~@2 b2@2 a2@2", O: "g#2@3 ~@3 g#2@2 e2@4 g#2@4", P: "f#2@8 ~@4 f#2@4 c#2@7 ~ f#2@8",
  Q: "b2@2 ~@2 b2@4 a2@3 ~ a2@4 g#2@2 ~@2 g#2@3 ~ f#2@3 ~ f#2@3 ~", R: "e2",
})).s("gm_fretless_bass").gain(0.44)

// other · string ensemble 1 · "STRINGS"
const string_ensemble_1 = note("<~@13 A B C D@4 E ~@6 A B C D@4 ~@8 E ~@6 A B C F@3 ~@7>".pickRestart({
  A: "~@24 e5@2 [f#5,g#5] ~ a5 b5 c#6 d#6", B: "e6", C: "d#6",
  D: "[c#6@31 ~@33 b4@37 a4@5 ~ g#4@5 f#4@5 d4@5 ~ a3@5, ~@31 b5@65 ~@32]/4", E: "g#3 ~", F: "[c#6@31 b5@65]/3",
})).s("gm_string_ensemble_1").gain(0.33).pan(0.6)

// chords · string ensemble 1 · "STRINGS"
const string_ensemble_1_2 = note("<~@2 A@12 B@2 C@2 D@2 A@8 B@2 C@2 D@2 ~@8 A@8 B@2 C@2 A@4 E F G ~>".pickRestart({
  A: "[[e4,g#4] [d4,f#4] [e4,g#4] [d4,f#4,a4] [e4,g#4] [d4,f#4] [e4,g#4] [d4,f#4,a4], b3]/4", B: "[e5 d#5, [g#4,b4]]/2",
  C: "[[a4,c#5] [b4,d#5], f#4]/2", D: "[[e4,g#4] [d4,f#4] [e4,g#4] [d4,f#4], b3]/2", E: "[e4,g#4] [d4,f#4]",
  F: "[e4,g#4] [d4,f#4,a4]", G: "[e4,g#4]",
})).s("gm_string_ensemble_1").gain(0.33)

// chords · tremolo strings · "TREMOLOSTR"
const tremolo_strings = note("<~@34 A@4 B@4 ~@14 C D E F G ~>".pickRestart({
  A: "[[a3,c#4] d#4 [g#3,e4]@2, f#3 ~, ~ b3@3]/2", // A C#m
  B: "[[a3,c#4] ~@3 [a3,c#4]@2 [b3,d#4]@2, f#3 g#3 f#3@2, ~ b3@3 ~@4, ~ d#4@2 e4@3 ~@2]/4", C: "[e4,g#4] [f#4,a4]",
  D: "[g#4,b4] [a4,c#5]", E: "[b4,d5] [a4,c#5]", F: "[g#4,b4] [f#4,a4]", G: "[e4,g#4]",
})).s("gm_tremolo_strings").gain(0.3).pan(0.6)

// other · flute
const flute = note("<~@20 A@3 B C@3 D ~@14 A@3 B C@3 D ~@5 E F@2 ~ G H ~>".pickRestart({
  A: "[~@14 g#5 [a5,a#5] ~ b5@52 a5@5 g#5@5 ~ f#5@5 e5@5 ~ d5@5]/3", B: "e5@5 f#5@5 ~ d5@5 b4@5 c#5@5 ~ d5@5",
  C: "[b4@7 ~@7 g#5 [a5,a#5] ~ b5@50 ~@2 a5@5 g#5@5 ~ f#5@5 e5@5 ~ d5@5]/3", D: "e5@5 f#5@5 d5@5 ~ b4@16",
  E: "~@11 b3@5 d4@12 c#4@4", F: "[b3@63 ~]/2", G: "~@3 b4 d5@3 c#5", H: "b4",
})).s("gm_flute").gain(0.28).pan(0.6)

// other · french horn · "FR.HORN"
const french_horn = note("<~@20 A@3 B C@3 D ~@14 A@3 B C@3 D ~@5 E F@4 G ~>".pickRestart({
  A: "[~@16 b4@53 a4@6 g#4@5 f#4@5 e4@5 ~ d4@5]/3", B: "e4@5 f#4@5 ~ d4@5 b3@5 c#4@6 d4@5",
  C: "[b3@16 b4@53 a4@6 g#4@5 f#4@5 e4@5 d4@5 ~]/3", D: "e4@5 f#4@5 d4@6 b3@15 ~", E: "~@11 b3@4 ~ d4@12 c#4@4",
  F: "[b3@104 ~@4 b3@4 d4@11 c#4@5]/4", G: "b3",
})).s("gm_french_horn").gain(0.38).pan(0.3)

// other · melodic tom · "MELO TOM 1"
const melodic_tom = note("<A B C D A B C D A B C D A B ~@6 E@12 ~@10 E@12 C D A B A B F ~>".pickRestart({
  A: "e2@2 ~@2 e2 ~ e3 ~ e3 ~@3 e3@3 ~ e2 ~ e3 ~ e2 ~@3 e3@2 ~@2 e3@2 ~@2",
  B: "e2@2 ~@2 e2 ~ e3 ~ e3@2 ~@2 e3@3 ~ e2 ~ e3 ~ e2@2 ~@2 e3 ~@3 e3@2 ~@2",
  C: "e2 ~@3 e2 ~ e3 ~ e3 ~@3 e3@3 ~ e2 ~ e3 ~ e2 ~@3 e3 ~@3 e3 ~@3",
  D: "e2 ~@3 e2 ~ e3 ~ e3 ~@3 e3@2 ~@2 e2 ~ e3 ~ e2 ~@3 e3 ~@3 e3 ~@3",
  E: "e2 ~@3 e2 ~ e3 ~ e3 ~@3 e3 ~@3 e2 ~ e3 ~ e2 ~@3 e3 ~@3 e3 ~@3", F: "e2 ~@15",
})).s("gm_melodic_tom").gain(0.28)

// drums · kick
const kick = s("bd").struct("<~@14 [x!2]!40 ~@8>").gain(0.38)

// drums · rim
const rim = s("rim").struct(`<
  ~@14
  [~@2 x!2 ~@2 x ~]!6
  [~@2 x ~@3 x!2]
  [~@2 x!2 ~@2 x ~]!21
  [~@2 x ~@3 x!2]
  [~@2 x!2 ~@2 x ~]!11
  ~@8
>`).gain(0.44)

// drums · snare
const snare = s("sd").struct("<~@27 [~@12 x!4] ~@21 [~@12 x!4] ~@12>").gain(0.49)

// drums · ride
const ride = s("rd").struct("<~@14 A@7 B A@5 C A@15 B A@5 C A@4 ~@8>".pickRestart({
  A: "x!8", B: "x ~ x!6", C: "x!6 ~@2",
})).gain(0.38)

// drums · congas
const congas = s("conga:13").struct("<[x!8]!60 x ~>").gain(1.22)

stack(
  acoustic_guitar_nylon, bass, string_ensemble_1, string_ensemble_1_2, tremolo_strings, flute, french_horn, melodic_tom,
  kick, rim, snare, ride, congas
)