// Viola Concerto TWV 51:G9 — Mehrzad Zamini
// 104 bpm, 3/2, key G major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: Transcription provider: pdmx. https://musescore.com/score/5920414; license: https://creativecommons.org/publicdomain/zero/1.0/
// note: Full arrangement: all 61 bars on a 24-step grid, each part at one level; ghost notes are separate "_soft" parts. Source detail keeps the original performance.
setcpm(104/6)

// 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 · piano · "Piano, Piano"
const piano = note(`<
  A B C D@3 E F G ~@9 H I J K L M N O P Q R S T U V W X Y Z AA ~@2 AB AC AD AE AF ~@2 AG@6 AH@6 AI@2
>`.pickRestart({
  A: "[g2,g3,b3,d4,g4]@4 b4@3 c5 [f#2,f#3,d4,a4,d5]@4", B: "[e2,e3,b3,g4]@4 e5@3 f#5 [e2,e3,g4,b4,g5]@4",
  C: "[e4,a4,c5]@4 ~@2 g2@2 [a4,c5]@3 ~@3 [e2,g4]@2 [f#4,c5]@3 ~@3 [f#2,a4]@2, a2@3 ~ f#2@3 ~ d2@3 ~", // Am Em F#dim F#m
  D: "[~@3 a4 b4@3 g4 [g2,g3,e4,b4]@4 [f#2,f#3,d4,a4]@4 a4@3 f#4 [f#2,f#3,d4,a4]@4 [e2,e3,d4,g4]@4 g5@3 e5 [e3,e4,c5,g5,c6]@4, [g2,d4,c5]@8 d4@8 e5@15 ~@9 d5@15 ~@17]/3", // Em D Em7 C Gsus4
  E: "[d3,d4,f#5]@6 [c3,c4,e5]@2 [b2,b3,d5]@6 [a2,a3]@2 [b4,g5]@6 [a4,f#5] ~, a4@8 ~@6 [c5,f#5] ~ [g2,g3]@8", // D C Bm A Em D Cdim G
  F: "[c5,a5]@3 [b4,g5] d3@4 ~@2 [b4,d5,g5]@2, [c3,e5]@8 [a4,d5,f#5]@11 ~@5, ~@2 d2", G: "[g2,g4,b4,d5,g5] ~@2",
  H: "[d2,d3,f#4,a4,d5]@4 f#5@3 g5 [c#2,c#3,a4,e5,a5]@4", I: "[b1,b2,f#4,b4,d5]@4 b5@3 c#6 [b1,b2,d5,f#5,d6]@4",
  J: "[b4,e5,g5]@2 ~ [d2,d3] [c#2,c#3]@3 [b1,b2,d5] [a1,a2,c#5]@3 [c#2,c#3,e5], [e2,e3]@3 ~ [e5,g5]@4 g5@4", // Em D C# Bm A C#m E Em
  K: "~@3 e5 [a4,d5,f#5]@4 ~@4, [d2,d3,a4,g5] ~@2", L: "[g3,d4,g4] ~@2", M: "c3 ~@2",
  N: "[b2,b3,d#4,f#4] ~ [b2,d#4,f#4,b4]", O: "[e3,e4,g4,b4] ~ [e3,b3,e4,g4]", P: "[a2,c4,e4,a4] ~ [b2,d4,f4]",
  Q: "[g#2,d4,e4] ~ [a2,c4,e4,a4]", R: "[d3,c4,f4,a4] e3 e2, ~@8 [b3,e4,g#4]@15 ~",
  S: "[a1,a2,a4]@4 c#5@3 d5 [c#2,c#3,e4,a4,e5]@4", T: "[d2,d3,d4,f#4,a4]@4 f#5@3 g#5 [f#2,f#3,a4,d5,a5]@4",
  U: "[g2,g3,g4,b4,d5]@4 g5@3 a5 [g2,g3,b4,d5,b5]@4", // G
  V: "[f#2,f#3,a4,d5,a5]@4 ~@3 f#5 ~@3 a5, ~ [e2,e3,b4,d5,g5] [a2,a4,c#5,g5]", W: "[d2,d3,a4,d5,f#5] ~ [d4,a4]",
  X: "[d4,g4] ~@2", Y: "~@2 d4", Z: "f#4 ~ [c2,f#3,a3]", AA: "[b1,d3,g3] ~@2", AB: "[a3,f#4,a4] ~ [d3,d4,f#4,d5]",
  AC: "[g3,d4,g4,b4] ~ [b2,g3,d4,g4,d5]", AD: "~@3 b4 d3@4 ~@2 g4@2, [c3,g3,e4,c5]@8 [d4,f#4,a4]@15 ~, ~@2 d2",
  AE: "[e2,b3,e4,g4] ~ [e2,b3,e4,g4]", AF: "[a2,c4,f#4]",
  AG: "[~@23 [c2,c3]@15 ~ [a1,a2]@8 [b1,b2]@6 [c2,c3]@2 [d2,d3]@8 [d2,d3]@8 [g1,g2,b3,d4,g4]@8 b4@6 c5@2 [f#2,f#3,d4,a4,d5]@8 [e2,e3,b3,e4,g4]@8 g5@6 a5@2 [d2,d3,b4,f#5,b5]@8 [c#2,c#3,a4,e5,a5]@8 g5@6 f#5@2 ~@6 a5@2 [d2,d3,a4,g5], ~@23 [a3,d4,f#4]@23 ~ [g3,d4,g4]@8 [a3,d4,f#4]@15 ~@65 [a2,c#5,g5]@8 ~]/6", // C A B C D G D Em …
  AH: "[~@5 e5@2 f#5@6 d5@2 [d3,d4,b4,f#5]@8 [c3,c4,b4,e5]@8 e5@6 c5@2 [c3,c4,a4,e5]@8 [b2,b3,a4,d5]@8 d5@6 b4@2 [b2,b3,g4,d5,g5]@8 [a2,a3]@6 [g3,b4]@2 [a4,c5]@3 ~@3 [e3,g4]@2 [f#4,c5]@3 ~@3 [c3,e4]@2 a4@6 [f#4,a4]@2 b4@6 c5@2 d5@6 g5@2 e5@6 c5@2 [d2,d3]@8 ~@5 g4@4, ~@15 b5@15 ~@9 a5@15 ~@17 [e4,c5]@3 ~@5 f#3@6 ~@2 d3@6 ~@2 b2@15 ~ [b1,b2]@8 [c2,c3]@8 ~@8 [d2,d3]@9, ~@95 [d4,c5]@8 g4@8 g4@15 ~ [d4,f#4,a4]@17]/6", // Bm Cmaj7 Am Bm7 G A G Am …
  AI: "[~ [g1,g2,b3,d4,g4]@30 ~@17]/2", // G
})).s("gm_piano").gain(0.3)

// chords · piano · "Piano, Piano" · soft notes
const piano_soft = note("<~@8 A B C@2 D E F G H I ~@3 J K L ~@5 M ~@3 N O P Q R S T U ~@20>".pickRestart({
  A: "~@2 [f#2,a3,d4,a4]", B: "[e2,b3,e4,g4] ~ [e2,e3,b3,e4,g4]",
  C: "[[a2,c4,e4,g4]@4 ~@4 [d2,d3,d4,f#4]@4 [g2,d4,g4]@4 b3@3 a4 [g2,d4,g4,b4]@4, ~@16 c4@15 ~ g4@8 ~@8]/2", // Am7 D G5 G
  D: "[c3,g3,e4] ~ [b2,b3,d#4]", E: "[c3,b3,e4] ~ [a2,c4,f#4,c5]", F: "[b2,d4,f#4,b4] ~ [g2,b3,e4,b4]",
  G: "[a2,c#4,e4,a4] ~ [a2,c#4,e4,a4]", H: "[d3,d4,f#4,a4] ~ [d3,f#4,a4,d5]",
  I: "[g3,e4,b4,d5] a3 a2, ~@8 [e4,a4,c#5]@15 ~", J: "~@2 [c3,a3,d4,f#4]", K: "b2 ~ [g2,b3,d4,g4]",
  L: "[c4,e4,g4] ~ [a2,c4,f#4,a4]", M: "[c#4,e4] ~@2", N: "~@4 a4@3 b4 [f#3,c5]@4", O: "[g3,b4] ~ [g2,d3,b3]",
  P: "[c3,e3,g3]@4 g4@3 a4 [g2,b4]@4", Q: "[d3,a4] ~@2", R: "~@2 [g2,e4,b4]", S: "[f#2,e4,a4] ~ [f#2,d4,a4]",
  T: "[e2,d4,g4] ~ [e2,e3,c4,g4]", U: "[d2,d3] ~@2",
})).s("gm_piano").gain(0.15)

stack(piano, piano_soft)