// By-Tor and the Snow Dog — Rush
// 180 bpm, 4/4, key D major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: metre changes (4/4 at bar 1, 3/4 at bar 49, 4/4 at bar 51, 2/4 at bar 52, ...) are rendered on a constant 4/4 grid of one bar per cycle
// note: Full arrangement: all 93 bars on a 16-step grid, each part at one level. Source detail keeps the original performance.
setcpm(180/4)

// 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 · distortion guitar · "Guitar"
const distortion_guitar = note(`<
  ~ A B C@2 A B D@2 A B C@2 A B D@2 ~@8 A B C@2 A B D@2 A B C@2 A B D@2 ~@14 E@16 ~@17 F@5
>`.pickRestart({
  A: "[d4,g4,b4] [d4,f#4,a4]", B: "[a3,c#4,g4] [a3,d4,f#4]", C: "[a3,d4,f#4]@2 ~ [a3,c#4,e4]@3 ~@2",
  D: "[[a3,d4,f#4]@2 ~ [a3,c#4,e4]@3 [g#3,b3,e4]@8 ~@2]/2", // D A E
  E: "[~@3 [d4,g4,b4]@4 [d4,f#4,a4]@4 [a3,c#4,g4]@4 [a3,d4,f#4]@4 [a3,d4,f#4]@2 ~ [a3,c#4,e4]@3 ~@2 [a3,d4,f#4]@2 ~ [a3,c#4,e4]@3 ~@2 [d4,g4,b4]@4 [d4,f#4,a4]@4 [a3,c#4,g4]@4 [a3,d4,f#4]@4 [a3,d4,f#4]@2 ~ [a3,c#4,e4]@3 [g#3,b3,e4]@7]/8", // G D A7 D A D A G …
  F: "[~@11 a3@8 a3@8 [a3,d4,f#4]@8 ~@5, ~ [d4,f#4]@26 ~@13]/5", // D
})).s("gm_distortion_guitar").gain(0.32).pan(0.6)

// chords · distortion guitar · "Guitar Bass"
const distortion_guitar_2 = note(`<
  ~@17 A@2 B@2 A@2 B@2 ~@16 A@2 B@2 A@2 B@2 C D E C D F ~@16 G@8 H@3 I@4 J@2 K ~@4
>`.pickRestart({
  A: "[[e3,g3,c4]@3 [c3,f3,a3]@3 [d3,g3,b3]@8 ~@2]/2", B: "[[c3,f3,a3]@3 [d3,g3,b3]@3 [f#3,a3,d4]@8 ~@2]/2",
  C: "g3!2 g#3 a3 ~@2 g3!2", D: "g#3 a3 ~@2 g3!2 g#3 a3", E: "~ g3 ~ f#3@2 d3@3", F: "~ g3 ~ f#3 ~ g3 ~ f#3",
  G: "[~@3 [e3,g3,c4]@3 [c3,f3,a3]@3 [d3,g3,b3]@8 ~@2 [c3,f3,a3]@3 [d3,g3,b3]@3 [f#3,a3,d4]@8 ~@2 [e3,g3,c4]@3 [c3,f3,a3]@3 [d3,g3,b3]@8 ~@2 [c3,f3,a3]@3 [d3,g3,b3]@3 [f#3,a3,d4]@7]/8", // C F G F G D C F …
  H: "[~@3 [c3,f3,a3]@3 [d3,g3,b3]@3 [f#3,a3,d4]@8 ~@2 f3 a3 c4 g3 b3]/3", I: "[d4 [a3,d4,f#4]@8 ~@2 f3 a3 c4 g3 b3]/2",
  J: "d4 ~@2 f3 a3 c4 g3 b3", K: "d4 ~@7",
})).s("gm_distortion_guitar").gain(0.32).pan(0.6)

// bass · electric bass finger · "Bass"
const bass = note(`<
  A B C D E B C F@2 B C D E B C G@2 H@2 I@2 H@2 J@2 B C D E B C F@2 B C D E B C G@2 H@2 I@2 H@2 I@2 K L M K L N O@4 P@3
  Q@5 P@3 R@2 S@2 T@2 S@2 U@2 V@2 W@4 X@2 Y@5
>`.pickRestart({
  A: "d2@2 d3@2 d2!2 d3@2", B: "g2@2 d2 g2 f#2@2 d2 f#2", C: "e2@2 e2 f#2 d2@2 a1@2", D: "d2 c#2 b1 a1@3 b1 c#2",
  E: "d2 c#2@2 b1@2 a1 e2 a2", F: "[d2 c#2 b1 a1 g1 f#1 e1@4 e2@2 e2@2 e2@2]/2",
  G: "[d2 c#2 b1 a1 g1 f#1 e1@4 e1@2 e1@2 e1@2]/2", H: "[c2@2 c2 f2@2 f2 g2@3 d2 g2@2 g2@2 d2 g2]/2",
  I: "[f2@2 f2 g2@2 a2 d2@4 d3@2 d3@2 d2@2]/2", J: "[f2@2 f2 g2@2 a2 d2@4 d3@2 d3@2 a2@2]/2", K: "g2!2 g#2 a2 ~@2 g2!2",
  L: "g#2 a2 ~@2 g2!2 g#2 a2", M: "~ g2 ~ f#2@2 d2@3", N: "~ g2 ~ f#2 ~ g2 ~ f#2",
  O: "[~ d3 a2 g2@2 d2 g2 f#2@2 d2 f#2 e2@2 e2 f#2 d2@2 a1@2 d2 c#2 b1 a1@3 b1 c#2 d2 c#2@2 b1@2]/4",
  P: "[a1 e2 a2 g2@2 d2 g2 f#2@2 d2 f#2 e2@2 e2 f#2 d2@2 a1@2 d2 c#2 b1 a1 g1]/3",
  Q: "[f#1 e1@4 e2@2 e2@2 e2@2 g2@2 d2 g2 f#2@2 d2 f#2 e2@2 e2 f#2 d2@2 a1@2 d2 c#2 b1 a1@3 b1 c#2 d2 c#2@2 b1@2]/5",
  R: "[f#1 e1@4 e1@2 e1@2 e1@2 c2@2 c2 f2@2]/2", S: "[f2 g2@3 d2 g2@2 g2@2 d2 g2 f2@2 f2 g2@2]/2",
  T: "[a2 d2@4 d3@2 d3@2 d2@2 c2@2 c2 f2@2]/2", U: "[a2 d2@4 d3 a2 d3@2 d3@2 f2@2 f2 g2@2]/2",
  V: "[a2 d2@4 d3 a2 d3@2 d2@2 f2 a2 c3 g2 b2]/2", W: "[d3 d2@3 d3 d3@2 d3@2 g2@2 f2 a2 c3 g2 b2]/2",
  X: "d3 ~@2 f2 a2 c3 g2 b2", Y: "[d3 ~@10 d3@8 d3@8 [d2,d3]@8 ~@5, ~ d2@26 ~@13]/5",
})).s("gm_electric_bass_finger").gain(0.8).pan(0.3)

// drums · kick
const kick = s("bd").struct("<~ A@15 ~ A@7 ~ A@15 B A@8 ~@6 C@26 ~@12>".pickRestart({
  A: "x!2", B: "x!8", C: "~@3 x ~@3 x",
})).gain(0.8)

// drums · rim
const rim = s("rim").struct("<~@40 [~ x ~ x ~ x ~ x ~ x ~ x ~ x ~@2] ~@52>").gain(0.8)

// drums · snare
const snare = s("sd").struct(`<
  A B@15 ~ B@7 ~ B@15 C B@7 ~ D E F ~@3 G H@3 G H@6 I J H@2 K G H@9 K ~@8 L M ~
>`.pickRestart({
  A: "~@3 x", B: "~ x ~ x", C: "~@7 x", D: "~@6 x!2", E: "x!2 ~@2 x!4", F: "~ x ~ x ~ x ~@2", G: "~@5 x ~@2",
  H: "~ x ~@3 x ~@2", I: "~ x ~ x!2 ~ x ~", J: "x!3 ~@2 x ~@2", K: "~ x ~@6", L: "~@6 x!10", M: "x!6 ~@10",
})).gain(0.8)

// drums · low tom
const low_tom = s("lt").struct(`<
  A ~@15 B ~@7 C ~@3 D ~@11 E ~@11 F G H ~@3 I ~@12 J ~@9 K ~ K ~ K@2 L M N O ~@2
>`.pickRestart({
  A: "~@4 x!2 ~@2", B: "~@8 x!4 ~@4", C: "~@7 x!3 ~@6", D: "~ x ~ x ~@4", E: "~@12 x!2 ~@2", F: "x ~@2 x",
  G: "~@8 x!2 ~@6", H: "~@4 x!6 ~@6", I: "~@7 x", J: "~ x!2 ~@13", K: "~@3 x ~@2 x!2", L: "~@6 x!3 ~@4 x!2 ~",
  M: "~@6 x ~ x!2 ~@6", N: "x!2 ~@3 x!3 ~@5 x!3", O: "~@3 x ~ x ~@10",
})).gain(0.8)

// drums · hihat
const hihat = s("hh").struct("<~ A@48 ~@6 B C@25 D E F E F G ~@6>".pickRestart({
  A: "x!4", B: "~@3 x ~ x ~ x", C: "~ x ~ x ~ x ~ x", D: "~ x ~ x!4 ~", E: "~ x!7", F: "x!3 ~@3 x ~", G: "~@3 x",
})).gain(0.8)

// drums · mid tom
const mid_tom = s("mt").struct(`<
  A ~@15 B ~@7 C ~@3 D ~@11 E ~@7 F G ~@2 H I J ~@4 K ~@10 L M ~@9 N ~ N ~ N@2 O P Q M ~@2
>`.pickRestart({
  A: "~@2 x!2 ~@4", B: "~@4 x!4 ~@8", C: "~@3 x!3 ~@4 x ~@5", D: "~@5 x ~ x", E: "~@4 x!8 ~@4", F: "~@8 x!8",
  G: "x!3 ~@5", H: "~ x!2 ~@4 x", I: "x ~@9 x!4 ~@2", J: "x!4 ~@6 x!4 ~@2", K: "x!2 ~@6", L: "~@15 x", M: "x",
  N: "~@3 x!3 ~ x", O: "~@9 x!4 ~@2 x", P: "x ~@4 x ~ x ~@2 x!2 ~@4", Q: "~@2 x ~ x ~@3 x!2 ~ x!2 ~@3",
})).gain(0.8)

// drums · open hat
const open_hat = s("oh").struct("<~ [~ x ~ x ~ x ~ x]!48 ~@6 [~@2 x!2] [x!4]!25 [x!2 ~@2] ~@11>").gain(0.8)

// drums · high tom
const high_tom = s("ht").struct(`<
  A ~@15 B ~@7 C ~@3 D ~@11 B ~@7 E F ~@2 F G H I ~@3 J ~@10 K ~@10 L M L M L N M O P Q ~@2
>`.pickRestart({
  A: "x!2 ~@6", B: "x!4 ~@12", C: "x!3 ~@8 x!2 ~@3", D: "x!4", E: "x!8 ~@8", F: "~@3 x ~@4", G: "~@2 x ~@11 x!2",
  H: "~@14 x!2", I: "x!2 ~@14", J: "~ x ~@2", K: "~@3 x!4 ~", L: "~@5 x ~@2", M: "x", N: "x ~@4 x ~@2",
  O: "~ x ~@2 x ~@7 x!4", P: "~@3 x ~@6 x ~@5", Q: "~ x!2 ~ x ~@11",
})).gain(0.8)

// drums · crash
const crash = s("cr").struct(`<
  A ~@3 B ~@11 C ~@7 D ~@16 E C F ~@6 G ~@4 H ~@14 I G ~@2 J ~@7 K ~ K ~@3 L@2 K M ~
>`.pickRestart({
  A: "~@3 x", B: "x ~@2 x ~@4", C: "~@6 x!2", D: "~@13 x!2 ~", E: "x!2 ~@6", F: "x!2 ~@2", G: "~ x ~@2", H: "~ x!2 ~@5",
  I: "~@7 x", J: "~@5 x ~ x", K: "~ x ~@6", L: "~ x ~@3 x ~ x", M: "~@3 x ~@4",
})).gain(0.8)

stack(
  distortion_guitar, distortion_guitar_2, bass, kick, rim, snare, low_tom, hihat, mid_tom, open_hat, high_tom, crash
)