// 316 — Van Halen
// 130 bpm, 4/4, key A major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: pitch bends are ignored
// note: Full arrangement: all 41 bars on a 24-step grid, each part at one level. Source detail keeps the original performance.
setcpm(130/4)

// 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 · contrabass · "Eddie"
const contrabass = note("<A@3 B@3 C D@6 E@8 F G H@3 I@2 J K L@8 M@3>".pickRestart({
  A: "[~@19 a3@2 ~@5 c#5@2 ~ [f#4,a4,d5]@5 a3 ~@2 [f#4,a4,d5]@4 ~@3 [e4,a4,c#5]@11 a3@2 e4@3 ~@2 c#5@2 ~ [f#4,d5]@5 a3@2, ~@21 e4@5 ~@46, ~@12 a4@2 ~@16 a4@2 a4@3 ~]/3", // D A D
  B: "[[f#4,a4,d5]@4 ~@3 [e4,a4,c#5]@13 a3@2 ~@2 a4@3 c#5@2 ~@5 a3@2 ~ [f#4,a4,d5]@4 ~@3 [e4,a4,c#5]@12 a3@2 ~@2 a4@3 c#5@2 ~@5 a3@2, ~@22 e4@5 ~@2 a4@6 ~@37, ~@30 [f#4,d5]@6 ~@22 e4@5 ~@3 [f#4,a4,d5]@6]/3", // D A D A D
  C: "~ [e4,a4,c#5]@3 ~@4 [e4,g#4,b4]@14 a3@2", // A E
  D: "[~@5 b4@2 ~ [e4,g#4,b4]@5 a3@2 [e4,g#4,c#5]@2 ~@6 [a3,d4]@10 ~ f#3@2 d4@3 ~@2 f#3@3 g3@2 d4@3 g4@2 f#3@3 e3@2 [a3,e4,a4]@3 ~@6 a3@3 ~@4 c#5@2 ~ [f#4,a4,d5]@5 a3@2 ~ [f#4,a4,d5]@4 ~@3 [e4,a4,c#5]@12 a3@2 e4@3 a4@2 c#5@2 ~ [f#4,a4,d5]@5 a3@2 [e4,a4,c#5]@2 ~@6 [e4,g#4,b4]@14 a3@3, e4@7 ~@61 e4@4 ~@72, ~@3 g#4@4 ~@16 a4@11 ~@5 a4@6 ~@25 a4@4 ~@70]/6", // E C#m D5 A5 D A D A …
  E: "[~@5 b4 ~@2 e4@5 a3@2 [e4,g#4,c#5]@3 ~@5 [a3,d4]@10 ~ f#3@2 d4@3 ~@2 f#3@3 g3@2 d4@3 ~@2 f#3@3 e3@2 [a3,e4,a4]@3 ~@7 a3@2 e4@3 ~@2 c#5@2 ~ [f#4,a4,d5]@5 a3@2 ~ [a4,d5]@4 ~@14 a3@2 e4@3 ~@2 c#5@2 ~ [f#4,a4,d5]@4 a3@3 [e4,a4,c#5]@2 ~@5 [e4,g#4,b4]@13 a3@3 ~@2 g#4@3 b4 ~ [e4,g#4]@6 a3@2 [e4,g#4,c#5]@3 ~@4 [a3,d4]@9 ~@2 f#3@2 d4@3 a4@2 f#3@3 g3@2 d4@3 g4@2, e4@7 ~@76 f#4@4 ~@4 [e4,a4,c#5]@13 ~@38 e4@6 ~@44, ~@3 g#4@4 [g#4,b4]@6 ~@10 a4@11 ~@5 a4@6 ~@4 g4@4 ~@18 a4@4 ~@32 a4@4 ~@38 b4@5 ~@10 a4@11 ~@17]/8", // C#m D5 A5 D D5 D A E …
  F: "f#3@3 e3@3 [a3,e4,a4]@3 ~@6 a3@2 ~@2 a4@3 c#5@2, ~@17 e4@4 ~@3", // A5
  G: "~@5 a3@2 ~ [f#4,a4,d5]@4 ~@3 [e4,a4,c#5]@9, f#4 ~@3, ~ [a4,d5]@6 ~@17", // D A D5
  H: "[~ a3@3 [e4,g4]@3 ~@2 [e4,g4]@18 a3@2 ~ a3@2 a3@2 ~@3 a3@3 [f#4,c5]@2 ~@3 [f#4,c5]@20 a3@2 ~@3 a3@2]/3", // Em F#dim
  I: "[~ [f4,c5]@2 ~@3 [f4,c5]@7 ~ a3@2 c4@2 c#4@3 [a3,e4]@8 ~@2 a3@2 e4@3 ~@2 c#5@2 ~ [f#4,d5]@5 a3 ~, ~@18 a4@2 a4@3 ~]/2", // F5 A5 D
  J: "[f#4,a4,d5]@4 ~@3 [e4,a4,c#5]@9 a3@3 [e4,g4]@2 ~@3", K: "[e4,g4]@18 a3 ~ a3 ~@2 a3",
  L: "[~@4 a3@2 [f#4,c5]@2 ~@4 [f#4,c5]@18 a3@2 ~@3 a3@3 [f4,c5]@2 ~@4 [f4,c5]@7 a3@3 ~ c#4@3 [a3,e4]@8 ~@5 a4@3 c#5@2 [f#4,a4,d5]@5 a3@2 [f#4,a4,d5]@4 ~@3 [e4,a4,c#5]@12 a3@2 e4@3 ~@2 c#5@2 [f#4,a4,d5]@5 a3@3 [e4,a4,c#5]@2 ~@16 a3@3 ~@4 b4@2 ~@5 a3@3 [e4,g#4,c#5]@3 ~@5 a4@10 f#3@3 d4@3 ~@2 f#3@3 g3@3 d4@3 g4@3, ~@54 c4@2 ~@11 a3@4 ~@55 [g#4,b4]@13 ~@3 g#4@4 ~@32 a4@4 ~@10, ~@69 e4@4 ~@34 a4@4 ~@14 e4@12 ~@3 e4@6 ~ [e4,g#4,b4]@6 ~@8 [a3,d4]@9 ~@22]/8", // F#dim F5 A5 D A D A C#m …
  M: "[~@3 e3@3 [a3,e4]@7 ~@5 a3@4 a4@5 e4@4 b4@5 a4@5 e5@27 ~@4, f#3@5 ~ a4@9 ~@57]/3", // A5
})).s("gm_contrabass").gain(0.16)

stack(contrabass)