// Bell Bottom Blues — Eric Clapton
// 64 bpm, 4/4, key A major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: Tempo changes preserved in elapsed time; displayed bars use the dominant tempo.
// note: metre changes (4/4 at bar 1, 2/4 at bar 19, 4/4 at bar 19, 2/4 at bar 21, ...) are rendered on a constant 4/4 grid of one bar per cycle
// note: pitch bends are ignored
// note: Full arrangement: all 86 bars on a 32-step grid, each part at one level; ghost notes are separate "_soft" parts. Source detail keeps the original performance.
setcpm(64/4)

// 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 · electric guitar jazz · "tk1"
const electric_guitar_jazz = note("<A B C D E F G H I J K L ~@9 M N O P Q R S T ~@27 U V W X Y Z AA ~@23>".pickRestart({
  A: "~@20 b2@4 c3@2 d3@5 ~", B: "~@12 g3@3 ~@13 b3@4, c3@15 ~ b2@16, ~ g3@2 ~@2 e3@2 ~, ~ c4 ~ g#3",
  C: "~@2 e3@2 a3 ~@9 g3!2, a2@9 ~@3 c4@18 ~@2, ~@4 e3@3 ~, ~@5 c3@3",
  D: "~@8 c4@3 ~ e4@3 [a#3,c#4] b3@4 ~@4 [d4,g4]@8, f3 g3, ~@4 a3@7 ~@5 d4@8 ~@8, ~@20 b3@9 ~@3", // A#m G5
  E: "[f2,c3,a3,c4,f4]@5 ~ [f2,c3,a3,c4,e4]@2 ~@16 b2@3 c3@2 d3@3, ~@3 [g2,g3,b3,d4,g4]@5, ~@12 d3@17 ~@3", // F Fmaj7 G
  F: "~@2 e3@2 ~@3 d3 ~@6 b3@2, c3@15 ~ b2@15 ~, ~ c4 ~ g#3, ~@3 g3 ~ d3@3",
  G: "~@7 e3 ~@2 g3@6, a2@15 ~ c3@16, ~@4 e3@8 a3@5 ~@15, ~ c4 ~@2", H: "c3@3 c3 d3@4",
  I: "[c3,a3,c4,f4]@5 ~ [f2,c3,a3,c4,e4]@2 ~@4 [d3,g3]@12 b2@3 c3@2 d3@3, f2@3 ~@9 [g2,b3,d4,g4]@20", // F Fmaj7 G5 G
  J: "~@12 e3@3 ~@9 g#3@7 ~, c3@15 ~ b2@14 ~@2, ~ c4@3 ~@4, ~@8 g3@7 ~@5 d3@11 ~",
  K: "~@2 e3@2 c4 ~ a3 e3 ~@4 c4@2 ~@2, a2@15 ~ c3@14 ~@2, ~@10 e3@5 ~",
  L: "[f2,d#3,a3]@8 d#3@4 f3@3 ~ [g2,g3,b3]@6 ~@4 [g2,d3]@2 [g2,d3]@3 ~, ~@8 [f2,a3]@8 d3@9 ~@7", // F7 G G5 F
  M: "[a3,c4,f4]@5 ~ [a3,c4,f4]@2 ~@4 [d3,g3,b3,d4]@12 b2@3 c3@2 d3@2 ~", // F G
  N: "~@7 c3 ~@6 b3@2, e3@12 e3@4 b2@15 ~, ~ c4@3 ~@2 g#3@2, ~@2 g3@2 ~ d3@3",
  O: "~@6 a3 e3 ~@2 g3@6, a2 c3, ~ e3@2 ~@5, ~ c4 ~@2",
  P: "[f2,c3,d#3,a3]@4 [f2,c3,d#3,a3]@4 [f2,c3,d#3,a3]@4 [f2,c3,d#3,a3]@4 ~@8 g4@7 ~, ~@16 [g2,d3,g3,b3]@15 ~, ~@5 d4@3", // F7 G
  Q: "[f2,c3,a3,c4,f4]@5 ~ [f2,c3,a3,c4,f4]@2 ~@4 d3@12 b2@3 c3@2 d3@3, ~@3 [g2,g3,b3,g4]@5, ~@12 d4@17 ~@3", // F G
  R: "~@8 g3@4 c4@3 ~@13 b3@4, c3 b2, ~ e3@2 ~@2 e3@3, ~@3 g#3",
  S: "~@12 g3@3 ~, a2@8 c3@7 ~, ~@2 e3@3 a3@3 ~@8, ~@2 c4 e3@2 e3@3",
  T: "[d#3,a3]@8 [f2,a3]@4 f3@3 ~ [g2,d3]@4 ~@6 [g2,d3]@2 [g2,d3]@3 ~, f2@4 ~@4 d#3@2 ~@6 g3 ~@15", // D#dim F G5
  U: "~@7 c3 ~@6 b3@2, e3@6 e3@2 b2@5 ~@3, ~ c4@3 ~@2 g#3@2, ~@2 g3@2 ~ d3@3",
  V: "~@6 e3 ~@3 [e3,g3]@6, a2@7 g3@3 ~@6, ~@2 e3@3 a3@3 c3@8, ~ c4 ~@2", // Em
  W: "[f2,c3,d#3,a3]@4 [f2,c3,d#3,a3]@4 [f2,c3,d#3,a3]@4 [c3,d#3]@2 c#3@2 ~@10 g2@2 d3 e3 g3@2, ~@3 [f2,a3] [g3,b3]@4, ~@16 [g2,d3]@8 g4@7 ~, ~@5 d4@3", // F7 Cm F G G5
  X: "[c3,a3,c4,f4]@5 ~ [f2,c3,a3,c4,e4]@2 ~@4 [g2,d3,g3]@20, f2@3 ~@9 [b3,d4]@16 ~@4, ~@6 g4@5 ~@5", // F Fmaj7 G5 Bm
  Y: "~@3 c4 ~@3 b3, c3 b2, ~ e3@3 ~ d3@3, ~ g3 ~ g#3", Z: "[e3,g3,a3]@7 ~ [e3,f#3,a3]@8 [f3,g3,a#3]@7 ~ [e3,g3,a#3]@8",
  AA: "[c3,d#3,a3]@3 ~ [c3,d#3,a3]@2 ~@2 [c3,d#3,a3]@4 [f2,c3]@2 [f#2,c#3]@2 [g2,d3,g3,b3]@3 ~ [g2,d3]@3 ~ [g2,d3]@2 [g2,d3]@2 [g2,d3]@3 ~", // Adim F5 F#5 G G5
})).s("gm_electric_guitar_jazz").gain(0.25).pan(0.6)

// bass · fretless bass · "tk2"
const bass = note(`<
  ~ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z AA AB AC AD AE AF P AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU
  AV AW AX AY AZ BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ CA CB CC CD@3
>`.pickRestart({
  A: "c3@11 ~ c3@3 ~ b2@15 ~", B: "a2@5 a2 a2@2 g2@7 ~", C: "f2@11 ~ f2@2 ~@2 g2@14 ~@2",
  D: "f2@4 c2@2 a1@3 ~ f1 ~ g1@19 ~", E: "c3@14 ~@2 b2@15 ~", F: "a2@8 g2@7 ~", G: "f2@15 ~ g2@15 ~",
  H: "f2@4 c2@2 a1@2 ~@2 f1 ~ g1@19 ~", I: "c3@15 ~ b2@15 ~", J: "a2@15 ~ g2@15 ~",
  K: "f2@16 g2@4 ~@2 d2@2 g1 ~ g1 ~ g1 ~ g1@2", L: "a1@8 a2@8 g#1@9 ~ g#1@2 g#1@3 ~",
  M: "f#1@13 ~ a1@2 d2@7 ~ e2@2 e1 ~ g#1@3 ~", N: "a1@11 ~ a1@3 ~ g#1@9 ~ g#1 ~ g#1@3 ~",
  O: "f#1@10 a1@2 e2@2 a1 ~ d2@4 ~@4 e2@4 ~@4", P: "a1@11 ~ b1@2 c2 ~ c#2@3 ~ e2@3 ~ f#2@4 e2@3 ~",
  Q: "a2@14 ~@2 d3@3 ~ c#3@3 ~ b2@3 ~ a2@3 ~", R: "g#2@4 b1 ~@3 g#1@3 ~ e1@3 ~ a1@11 ~ b1@2 c2 ~",
  S: "c#2@3 ~ e2@3 ~ f#2@4 e2@3 ~ a2@13 ~ a2 ~", T: "d3@3 ~ c#3@3 ~ b2@7 ~ e2@12 ~@4", U: "f2@5 ~ f2@3 ~@3 g2@20",
  V: "c3@16 b2@15 ~", W: "a2@15 ~ g2@4 e2@3 ~ c2@7 ~", X: "f2@4 ~@4 f2@7 ~ g2@14 ~@2",
  Y: "f2@3 ~ c2@2 f1@2 ~@4 g1@19 ~", Z: "c2@15 ~ b1@8 e2@7 ~", AA: "a1@15 ~ c2@3 ~ g1 ~ c1@7 ~ e1 ~",
  AB: "f1@9 ~ c2@2 f1@3 ~ g1@4 g1@3 ~ g1@4 g1@3 ~", AC: "a1@14 ~@2 g#1@9 ~ g#1@2 g#1@3 ~",
  AD: "f#1@4 f#1@2 f#1@5 ~ f#2@4 d1@6 d1 ~ e1@7 ~", AE: "a1@8 a2@8 g#1@2 g#1@9 ~ c#2@3 ~",
  AF: "f#1@10 a1@2 e2@2 c#2 ~ d2@4 d2@2 f#2@2 e2@3 ~ e1@3 ~", AG: "a2@9 ~ e2 ~ c#2@3 ~ d2@3 ~ c#2@3 ~ b1@3 ~ a1@3 ~",
  AH: "g#1@4 f#1@3 ~ e1@3 ~ e2@3 ~ a1@11 ~ b1@2 c2 ~", AI: "c#2@3 ~ e2@3 ~ f#2@4 e2@3 ~ a2@5 ~ e3 d3 c#3@2 b2@2 a2@4",
  AJ: "d3@4 c#3@4 b2@7 ~ e2@9 ~ g#2@2 e2@3 ~", AK: "f2@3 ~ c2@2 f2@3 ~ f1 ~ g1@19 ~", AL: "c2@15 ~ b1@7 ~ e1@7 ~",
  AM: "a1@7 ~ d1@7 ~ g1@8 c2@7 ~", AN: "f1@10 f2 ~@3 f1 ~ g1@9 ~ c1@2 d1@2 e1@2",
  AO: "f1@6 f2@2 ~@2 f1 ~ g1@11 ~ g1@2 ~ a1@2 b1@2 ~", AP: "c1@9 ~ g1@2 d1@2 d#1@2 e1@7 ~ g#1@5 ~ g#1@2",
  AQ: "a1@8 d2@4 d1@2 a1@2 g1@2 d2@2 g2@4 c2 ~ e1@5 ~", AR: "f1@8 ~@2 f1@2 f2@2 f1@2 g1@3 ~ g1@3 ~ g1@3 ~ g1@4",
  AS: "a1@3 ~ a1@4 a2@8 g#1 ~ g#1@4 g#2@10", AT: "f#1@3 ~ f#1@5 ~ f#2@2 e2@2 c#2@2 d2@6 d2@2 g#1@5 ~ g#1@2",
  AU: "a1@4 a1@4 c#2@2 e2@2 f#2@2 e2@2 g#1 ~ g#1@8 c#2@2 c#2 ~ c#2@2",
  AV: "f#1@8 ~@2 a1@2 b1@2 c#2@2 d2@5 ~ d2@2 e2 ~@3 e1@4", AW: "a1@11 ~ b1@2 c2@2 c#2@3 ~ e2@4 f#2@4 e2@4",
  AX: "a2@8 g2@5 ~ e2 ~ d2@4 c#3@4 b2@3 ~ a2@3 ~", AY: "g#2@4 f#2@3 ~ e2 ~@3 g#1@3 ~ a1@11 ~ b1@2 c2@2",
  AZ: "c#2@3 ~ e2@4 f#2@4 e2@4 a2@10 f#2@2 e2@3 ~", BA: "d2@3 ~ c#2@4 b1@3 ~ d#1@3 ~ e1@6 e2@4 b1@2 e2 ~@3",
  BB: "f2@3 ~ c2@2 f1@3 ~ f1 ~ g1@18 ~@2", BC: "c3@12 g3@4 b2@10 c3@2 b2@3 ~, ~@12 f#3 ~@19",
  BD: "a2@11 ~@3 a2@2 g2@9 ~ e2@2 e1@3 ~, ~@3 e3 ~@4", BE: "f1@10 f2@2 c2@2 f1@2 g1@8 ~@4 g1@3 ~, ~@10 e2 ~@15 g2@5 ~",
  BF: "f2@4 c2@2 f1@3 ~ f1 ~ g1@11 ~ g1@2 ~ a1@2 b1@2 ~",
  BG: "c2@8 ~@2 g1 ~ f#1 ~ f1 ~ e1@4 e2@2 b0@2 g#1@4 g#2@2 g#1@2",
  BH: "a1@5 ~ a1@2 d2@6 a1 ~ g1@5 ~ d2@2 c2 ~ g1@2 e1@3 ~",
  BI: "f1@3 ~ f1@4 f2@2 d#2@2 f2@2 f2@2 g2@3 ~ g1@4 g2@3 ~ g1@2 d2@2",
  BJ: "a1@3 ~ a1@5 ~ c#2@2 d2@2 d#2@2 e2 ~ e2@6 ~@2 e2@2 f2@3 ~, ~@4 f#2 ~@27",
  BK: "f#2@4 f#2@4 e2@7 ~ d2@2 c#2@2 b1@2 a1 ~ g#1@4 e1@3 ~", BL: "a1@8 e2@7 ~ g#1@9 ~ c#1@5 ~",
  BM: "f#1@3 ~ f#1@3 ~ e1@3 ~ e1@4 d1@3 ~ d1@4 e1@2 g#1@2 e1 ~ e1@2",
  BN: "a1@2 ~@2 a1@6 ~@2 b1@2 c2@2 c#2@3 ~ e2@3 ~ f#2@3 ~ e2@3 ~",
  BO: "a2@9 ~ f#2@2 e2@3 ~ d2@3 ~ c#3@3 ~ b2@4 a2@3 ~, ~@10 f2 ~@21",
  BP: "g#2@3 ~ b1 ~@3 g#1@4 e1@3 ~ a1@11 ~ b1@2 c2 ~",
  BQ: "c#2@3 ~ e2@3 ~ f#2@4 e2@3 ~ a2@3 ~ a2@5 ~ f#2@2 e2@3 ~, ~@26 f2 ~@5",
  BR: "d2@3 ~ c#2@3 ~ b1@5 ~ a1 ~ g#1@2 f#1@2 e1@3 ~ b1@2 ~@2 e1@3 ~", BS: "a1@10 ~@2 f#1 ~ f1 ~ e1@15 ~",
  BT: "a1@3 ~ b1@2 c2 ~ c#2@3 ~ c2@2 c#2@2 d2@3 ~ c#2@3 ~ b1@3 ~ a1@3 ~",
  BU: "g#1@3 ~ f#1@3 ~ e1@3 ~ [a#1,b1] ~@3 a1@3 ~ a1@6 ~@2 b1@2 c2@2", // Bmaj7
  BV: "c#2@3 ~ e2@3 ~ f#2@4 e2@4 a2@3 ~ b2@8 a2@2 ~@2",
  BW: "~@2 d2 ~ c#2@3 ~ d2 ~@3 d#2@4 e2 ~ e1 ~ e1@5 ~ e1 ~ e1@2 e1@2", BX: "a1@2 ~@2 a1@9 ~ d2@2 e2@3 ~ e2@4 ~@6 e2@2",
  BY: "a2@2 a2 ~ a2@5 ~ a2@2 a2@3 ~ d3@3 ~ c#3@3 ~ b2@3 ~ a2@3 ~",
  BZ: "g#2@3 ~ f#2@4 e2 ~ b1 ~ g#1@3 ~ a1@10 ~@2 b1@2 c2@2", CA: "c#2@4 e2@3 ~ f#2@4 e2@3 a#2 b2@8 a2@4 e2@2 a2@2",
  CB: "d2@3 ~ c#2@4 b1@3 ~ f#1@2 f1@2 e1@3 ~ e2@4 b1 ~@3 e2 ~@3", CC: "f2@3 ~ c2@2 f1@2 ~@2 f#1 ~ g1@4 g1@12 b2@4",
  CD: "[~ c3@5 d3@6 ~ a2@14 a1@44 ~@25, ~@13 c#3@58 ~@25]/3",
})).s("gm_fretless_bass").gain(0.49).pan(0.4)

// chords · rock organ · "tk3"
const rock_organ = note(`<
  ~@4 A ~ B C D ~ E F ~@10 G H I J K L M N O P Q R S T@3 U V W X Y Z AA AB N AC AD O AE@2 AF@2 AG AH G AI AJ AK AL@2 AM
  N AN AO AP AQ AR AS AT AU AV AW AX AY AZ BA BB BC BD BE BF@3 ~
>`.pickRestart({
  A: "[f5,a5,c6]@12 b4@17 ~@3", B: "~@4 a#4@3 ~", C: "~@16 d4@13 ~@3", D: "[f4,a4,c5]@3 [g4,d5]@5, ~@6 b4@7 ~@3",
  E: "~ a#4", F: "~@4 d4 ~@3", G: "~ [g#4,b4,d5]", H: "[e4,a4] a#4, c5@11 ~@5", I: "[f4,a4] [d4,b4], ~@2 g4 ~",
  J: "[c5,f5] ~@2 [d5,g5,b5]@5, a5@3 ~@5", K: "g4@3 ~ [g#4,b4,d5]@4, c5@5 ~@3, e5 ~@7",
  L: "[a4,c5,e5] [d5,g5], ~@8 a#4@3 ~@5", M: "[a4,c5,f5] [b4,d5,g5]", N: "[c#5,e5,a5] [e5,g#5], ~@4 b4 ~@3",
  O: "[c#5,f#5,a5]@2 [a4,d5,f#5] [b4,e5,g#5]", P: "[e5,a5]@8 [b4,e5]@3 ~@5, c#5@3 ~@5 g#5@8",
  Q: "[f#5,a5]@2 [a4,d5,f#5] [b4,e5,g#5], c#5@3 ~@29", R: "a4 ~ g#4@2, c#5@3 ~", S: "g4 [f#4,a4,d5]",
  T: "[[g#4,b4,e5]@16 a4@13 ~@3 g#4@13 ~@5 a5@2 ~@2 a5@2 ~@2 e6@2 f#6@8 e6@4 d6@4 c#6@4 [b4,e5,g#5,b5]@16, ~@4 c#5@6 ~@3 b5 c#6 ~@9]/3", // E
  U: "[c5,a5]@3 [a4,c5,f5]@2 ~ [b4,d5,g5]@10, f5@3 ~@29", V: "c5 [b4,e5,g#5], e5@5 ~@11, g5@3 ~@13",
  W: "[c5,e5,a5] [a4,c5,e5,f#5] f5 e5, ~ [g4,a#4,d5]", X: "[a4,c5]@3 ~@5 [f4,b4,d5]@8, d#4 ~",
  Y: "[a4,c5,f5]@5 ~ [b4,d5]@10, ~@12 g5 ~@19", Z: "[g5,c6,e6]@2 [a5,b5] g#5, ~ [d6,e6]",
  AA: "[e5,g5,c6] [f#5,c6,e6] [d6,f6] [a#5,d6,e6,g6], ~@16 [g5,a#5]@5 ~@11", AB: "[d#5,a5,c6] [f5,g5,b5,d6], f5 ~@15",
  AC: "[c#5,f#5]@2 [a4,f#5] [b4,e5,g#5], a5 ~@3 d5 ~@3", AD: "[e5,a5] [b4,g#5], c#5@3 ~@5 e5@3 ~@5",
  AE: "[a4 g#4 g4 [f#4,a4,d5], c#5@11 ~@5]/2", // D
  AF: "[[g#4,e5]@16 ~@8 a5@4 b5@3 ~ [a5,c#6]@4 [b5,d6]@4 [c#6,e6]@4 [d6,f#6]@4 d#6 e6@3 f#6@2 a6@10, b4@3 ~ c#5@5 ~@7, ~ e5 ~@2, ~@4 a4@3 ~ g#4@4 ~@4]/2", // C#m A Bm C#m D
  AG: "f#6@4 e6@4 d6@4 c#6@4 b5@15 ~", AH: "[c5,f5] ~@2 [b4,d5,g5]@4 ~, a4@3 ~@5", AI: "[e4,a4] a#4, c5@15 ~@17",
  AJ: "~@4 c6@2 a#5@2 [a5,c6]@2 f5@2 d#5@2 f5@2 [g5,b5,d6]@3 ~ [g5,c6,e6]@3 ~@2 b5@7, [f4,a4] ~@3, ~ d#6 ~@6, ~@4 d6 ~@3 g#5 ~@7 a#5 ~@7 [f5,g5,d6]@8", // Am G C F G7
  AK: "[c5,f5,a5]@11 ~ [d5,g5,b5]@20", // F G
  AL: "[~@4 e6@6 d#6 d6 a5@4 d6@3 ~ d6@2 c6@2 e6@2 g6@2 a6 ~ c7@6 a6@2 g6 ~ d6 d#6 d6 ~ d6@2 ~@2 e6 d#6 d6 a5 d6@2 c6@6 a5@2 ~@2, ~@4 d#6 ~@7 c6 ~@11 d#6 ~@5 b6 ~@5 g#6 ~@5 c6@4 c6@4 c6@2 ~@12, ~@44 c#6 ~@7 c#6 ~@11]/2",
  AM: "[c5,f5,a5]@16 [g5,b5]@3 [f5,a5]@2 [e5,g5]@3 [d5,f5]@3 [c5,e5]@2 [b4,d5]@3", // F G F Em Dm C Bm
  AN: "[c#5,f#5]@2 [a4,d5,f#5] [b4,e5,g#5], a4 ~@31", AO: "[e5,a5,c#6] [g#5,b5], ~@8 e5@3 ~@5",
  AP: "[f#5,a5,c#6]@2 d5 e5, ~@16 a5@5 ~@3 b5@5 ~@3, ~@16 f#5@3 ~@5 g#5@3 ~@5", AQ: "a5 g#5, e5, c#5@3 ~",
  AR: "b5 c#6@3 b5@4 b5@3 ~ a5@3 ~@5 e5@4 ~@4 c#5@4, e6!2 a5@2, ~@16 f#5@7 ~ d5@8", AS: "[b4,e5,g#5] e5",
  AT: "a5 b5 c#6 d6 [c#6,e6] [d6,f#6] [c#6,e6]@2", AU: "f#6@4 ~@4 d6@4 c#6@4 g#5@15 ~, d6@8 ~@8 b5@11 ~@5, ~ e6@3 ~@4",
  AV: "~@4 a6@16 f#6@2 e6@2 c6 b5 a5@2 b5@2 a5@2, ~@4 g#6 ~@27",
  AW: "c6 ~@10 a5 f#5@2 e5@2 [f#5,a5,d6]@16, [c#6,e6] ~, ~@5 b5 ~@10", // D C#m
  AX: "[g#5,e6]@16 ~@4 a6@8 f#6@2 e6 ~, b5@6 ~@14 g#6 ~@11", // C#m
  AY: "a6@4 f#6@2 e6 ~ c6 b5 a5@2 b5@2 a5 ~ [a5,c#6]@4 [b5,d6]@4 e6@8, g#6 ~@23 c#6@4 ~@4", // A Bm
  AZ: "[f#5,d6] [g#5,b5], a5@4 ~@4 e6@5 ~@3", BA: "~@12 a6@8 f#6@2 e6 ~ c6 b5 a5@2 b5@2 a5@2, ~@12 g#6 ~@19",
  BB: "[a5,c#6] [b5,d6] [c#6,e6]@2 [f#5,a5,d6]@4", // A Bm C#m D
  BC: "b5@16 a6@4 f#6@2 e6 ~ a6@4 f#6@2 e6 ~, e6@12 ~@4 g#6 ~@7 g#6 ~@7, g#5@3 ~@13",
  BD: "a6@4 f#6@2 e6 ~ c6 ~ a5@2 f#5@2 ~@2 [g5,c#6,e6]@16, g#6 ~@8 b5@2 ~@3 e5@12 ~@6", // C#dim
  BE: "f#6 [c#6,e6] [b5,d6] [a5,c#6] [g#5,b5] [f#5,a5] g#5@2, d6@2 ~@4 e5 ~", // C#m Bm A G#m F#m
  BF: "[[a4,c5]@8 ~@4 [b4,d5,g5,b5]@32 ~ c#5@22 ~@29, f5@4 ~@11 e5@6 ~@11, a5@2 ~@43 a5@8 ~@43]/3", // Am G
})).s("gm_rock_organ").gain(0.27).pan(0.9)

// chords · rock organ · "tk3" · soft notes
const rock_organ_soft = note("<~@4 A B C D ~ B E F ~@10 G ~ H ~@31 G ~ I ~@27>".pickRestart({
  A: "~@12 [g4,d5]@19 ~", B: "[g4,c5,e5] [g#4,b4,d5]", C: "[e4,a4] ~, c5", D: "[c4,f4,a4]@16 [g4,b4]@15 ~",
  E: "c5 ~, a4@3 ~@5, e4 ~@3", F: "[f4,a4]@6 ~@10 [g4,b4]@15 ~, c4@5 ~@11", G: "[g4,c5,e5] ~", H: "c4@5 ~@11",
  I: "c4 ~@7",
})).s("gm_rock_organ").gain(0.16).pan(0.9)

// chords · epiano1 · "tk5"
const epiano1 = note(`<
  ~@12 A@2 B C D@2 E F ~@9 G@2 H I J@2 K L ~@9 M@2 N O P@2 Q@2 ~@9 R@2 S O T@2 U@2 ~ V@2 W@2 ~ X@2 Y Z ~@5
>`.pickRestart({
  A: "[~@4 a4@2 a4@2 a4@2 a4@2 a4@2 a4@2 b4@4 a4@2 a4@4 a4@2 ~ d4 c#4@4 ~@30, ~@7 e4 ~@8]/2",
  B: "~@4 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [f#4,b4,d5]@4 [a4,c#5,e5]@2 [a4,c#5,e5]@2 [f#4,a4,d5]@4 [e4,a4,c#5]@2 [a4,c#5] [d4,f#4,b4], ~@15 e4", // A Bm A D A Bm
  C: "[c#4,e4,a4] ~@3", // A
  D: "[[e3,c#4]@2 [b3,d4]@2 [c#4,e4]@2 [e4,a4]@2 [a4,c#5]@4 [f#4,b4,d5]@2 [e4,c#5]@7 ~@11, a3@2 a3@2 e4@3 a4@2 ~@7, ~@4 f#3 ~@7 c#4@28 ~@24]/2", // C#m Bm C#m A5 A Bm C#m
  E: "~@4 e3 [b3,d4] [c#4,e4] [c#4,e4,a4], ~@2 [a3,c#4] a3, ~@20 f#3 ~@11", // Bm C#m A
  F: "[e4,a4,c#5]@4 [f#4,b4,d5]@2 [e4,a4,c#5]@7 ~@3", // A Bm A
  G: "[~@4 a4@2 a4@2 a4@2 a4@2 a4@2 a4@2 ~@4 a4@2 a4@4 a4@2 e4 d4 c#4@4 ~@30, ~ b4 ~@2]/2",
  H: "~@4 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [f#4,d5]@4 [a4,c#5,e5]@2 [a4,c#5]@2 [f#4,a4,d5]@4 [e4,c#5]@2 [e4,a4,c#5] [d4,f#4,b4], ~@16 b4@15 ~, ~@11 e5@5, ~@28 a4 ~@3", // A D A D C#m A Bm
  I: "[c#4,e4,a4]@3 ~@13", // A
  J: "[e3@4 [b3,d4]@4 [a3,c#4,e4]@4 [c#4,e4,a4]@4 [e4,a4,c#5]@8 [f#4,b4,d5]@4 [e4,a4,c#5,e5]@15 ~@21, [a3,c#4] ~@7, ~@4 f#3 ~@59]/2", // Bm A Bm A
  K: "~@4 e3 [b3,d4] [a3,e4] [c#4,e4,a4], ~@16 [a3,c#4]@8 c#4@3 ~@5, ~@20 f#3 ~@11", // Bm A5 A
  L: "[e4,a4,c#5]@4 [f#4,d5]@2 [e4,a4,c#5,e5]@7 ~@3, ~ b4 ~@2", // A D A
  M: "[~@4 a4@2 a4@2 a4@2 a4@2 a4@2 a4@2 ~@4 a4@2 a4@4 a4@2 ~ d4 c#4@4 ~@30, ~ b4 ~@2, ~@7 e4 ~@8]/2",
  N: "~@4 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [f#4,d5]@4 [a4,c#5,e5]@2 [a4,c#5]@2 [f#4,a4,d5]@4 [e4,a4,c#5]@2 [a4,c#5] [d4,f#4,b4], ~@8 b4@6 ~ e4, ~@11 e5@5", // A D A D A Bm
  O: "[e4,a4]@3 ~@13, c#4 ~", // A5
  P: "[e3 [b3,d4] [c#4,e4] [e4,a4] [e4,a4,c#5]@2 [f#4,b4,d5] [e4,e5]@4 ~@5, [a3,c#4]@2 a3@2 ~@3 c#5@5 ~@4, ~@4 f#3 ~@7 c#4@36 ~@16, ~@14 a4@3 ~@15]/2", // Bm C#m A5 A Bm E A
  Q: "[~@8 e3@2 [b3,d4]@2 [c#4,e4]@2 [e4,a4]@2 [a4,c#5]@2 ~@2 [f#4,b4]@2 [e4,a4,c#5,e5]@7 ~@3, ~@2 [a3,c#4] a3 e4 d5 ~@2, ~@20 f#3 ~@7 c#4@36]/2", // Bm C#m A5 A B5 A
  R: "[~@4 a4@2 a4 ~ a4@2 a4@2 a4@2 a4@2 ~@4 a4@2 a4@4 a4 ~@2 d4 c#4@4 ~@30, ~@16 b4@7 ~@5 e4@4 ~@32]/2",
  S: "~@4 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [e4,a4,c#5]@2 [a4,c#5]@2 [f#4,b4,d5]@4 [a4,c#5,e5]@2 [a4,c#5]@2 [f#4,a4,d5]@4 [e4,a4,c#5]@2 [a4,c#5] [d4,f#4,b4], ~@7 e4@4 e5@4 e4", // A Bm A D A Bm
  T: "[[e3,a3]@2 [b3,d4]@2 [a3,c#4,e4]@2 [e4,a4]@2 a4@4 [f#4,b4,d5]@2 [a4,c#5,e5]@7 ~@11, c#4@2 ~ c#4@9 ~@4, ~@4 f#3 ~@11 [e4,c#5]@12 e4@20 ~@16]/2", // A5 Bm A A5 Bm A C#m
  U: "[~@8 [e3,a3]@2 [b3,d4]@2 [c#4,e4]@2 [e4,a4]@2 [e4,a4,c#5]@4 [f#4,b4,d5]@2 [c#5,e5]@7 ~@3, ~@4 c#4@2 ~ c#4@9, ~@20 f#3 ~@3 a3@8 ~@12 e4@20, ~@44 a4@7 ~@13]/2", // A5 Bm C#m A5 A Bm C#m
  V: "[[e3,a3]@2 [b3,d4]@2 [c#4,e4]@2 [c#4,e4,a4]@2 c#5@4 [f#4,b4,d5]@2 [a4,c#5]@5 ~@13, c#4@2 ~@2 [e4,a4]@3 e4@5 ~@4, ~@4 f#3 ~@3 a3@8 ~@48]/2", // A5 Bm C#m A Bm A A5
  W: "[~@8 [e3,a3]@2 [b3,d4]@2 [a3,c#4,e4]@2 [e4,a4]@2 [e4,a4,c#5]@4 [f#4,b4,d5]@2 [a4,c#5,e5]@7 ~@3, ~@4 c#4@2 ~ c#4@9, ~@20 f#3 ~@23 e4@20]/2", // A5 Bm A A5 A Bm A
  X: "[[e3,a3,c#4] [b3,d4] [a3,c#4,e4] [e4,a4] [a4,c#5]@2 [f#4,b4,d5] e4@5 ~@4, ~@4 f#3 ~@7 c#4@36 ~@16, ~@8 e4@6 c#5@7 ~@11, ~@14 a4@3 ~@15]/2", // A Bm A A5 A Bm
  Y: "~@4 [e3,a3] [b3,d4] [c#4,e4] [c#4,e4,a4], ~@2 c#4 ~, ~@20 f#3 ~@3 a3@8", // A5 Bm C#m A
  Z: "[e4,a4,c#5]@2 [f#4,b4,d5] [e4,a4,c#5]@4 ~, ~@12 e5@3 ~@17", // A Bm A
})).s("gm_epiano1").gain(0.3).pan(0.4)

// chords · string ensemble 1 · "tk6"
const string_ensemble_1 = note(`<
  ~@13 A B C ~ D E F G H I J K L M ~ N O P Q R S T U@2 V W X Y ~ Z AA AB AC AD AE AF AG AH AI AJ AK@2 AL ~@3 AM AN AO AP
  AQ AR AS AT AU@2 AV AW@2 AX@2 AY AZ BA BB BC BD BE BF BG@3 ~
>`.pickRestart({
  A: "~@4 [e4,a4] ~@3 [e4,a4]@2 ~@2 [e4,a4]@2 ~@2 d4@4 d4@4 [d4,a4]@2 f#4@2 [d4,a4]@2 [e4,b4]@2, ~@8 a4 ~ a4 ~@2 b3@3", // A5 D5 E5
  B: "~@24 a4@2 f#4@2 a4@2 b4 ~", C: "~@4 f#5@2 a5 ~ f#5 e5 c#5 ~ b4@2 a4 ~@5 f#4@2 ~@2 e4@2 c#4 ~ b3@4",
  D: "~@2 b4@2 c#5@2 e5@2 a5@6 d5 ~, a4@13 ~@19", E: "~@2 g#4 e4 ~@4, ~ b4@2 ~@5", F: "~@16 a5@3 ~ b5@4 c#6@4 e6@3 ~",
  G: "f#6@4 d6@4 ~@2 b5@2 e5@3 ~", H: "a5 f5 c5 a4 ~@2 d4@10", I: "e4@24 d4@5 ~@3", J: "c4@5 ~@27",
  K: "c4@16 d4@11 ~@5", L: "c4@5 ~ c4@2 ~@4 d4@20", M: "~ d5@2 c5 ~ e4@3, e5 ~",
  N: "~@4 g3 a3 ~ d4 a3 b3 d4 g4 d4 e4 g4 a4, ~@3 c4 ~@4", O: "a4@3 ~@5 e5@8",
  P: "~@3 a#5 b5@6 a5@2 f#5@2 e5@2 ~@4 a4@2 f#4@2 a4@4 e4@4",
  Q: "~@4 e4@2 d4@2 ~@2 e4@2 f#4@2 a4@2 ~@4 b4@7 ~ a4@2 ~@2, ~@4 c#4@3 ~@9",
  R: "~@4 b4 ~ a4 ~ f#4@2 e4@2 c#4@2 b3@2 a3@7 ~ b3@8, ~ c#5@7 ~@8", S: "a4@12 c#5@4 e5@7 ~ f#5@7 ~",
  T: "~@2 [b4,d5]@2 e5 ~ a5@2 ~@6 d5 ~, a4@13 ~@19, c#5!2 a5@2", // Bm
  U: "[~@4 a4@3 ~ b4@4 e4@3 ~ e4@24 b4@3 ~@5 a5@4 b5@2 ~@2 c#6@2 ~@2 e6@4]/2", V: "f#6@2 d6@2 ~ b5 e5@2",
  W: "~@4 f5@2 a4@2 ~@2 d5@2 b4@13 ~@7", X: "~@3 f5 ~@3 f5 e5@7 ~, ~ g5@3 ~@4, ~@2 e5!2 ~@4, ~@10 d5@9 ~@13",
  Y: "e5@8 d5@3 ~@5 d5@8 c5@8", Z: "f4@3 f4@2 ~ g4@10",
  AA: "~@3 a4 b4 c5 d5 d#5 e5 f#5 g#5 a5 ~ c6 ~ e6, ~ g4@3 ~@2 b5@2, ~@7 d6",
  AB: "c6@8 c6 ~ a5 e5 g5 e5 c5 a#4, ~@9 a#5@3 ~@4", AC: "a4@4 c4@4 ~@6 e4 f4, ~ d4", AD: "e4@3 ~@13",
  AE: "~ a5!7 [f#5,b5] [e5,a5] c#5 [b4,e5] c#5 b4 a4 f#4, ~@5 f#5 ~@2", AF: "e4@3 ~@5 b4@2 ~@4 e5@2",
  AG: "b5@6 c#6@2 a5@7 ~", AH: "a3@4 ~@8 b3@4 c#4 ~@3 e4@4 f#4@4 e4@4", AI: "~@2 b4@2 c#5 ~ e5@2 a5@4 d5@4, a4@5 ~@11",
  AJ: "~ b4@2 e5 ~@3 b4, ~@3 a4",
  AK: "[~@2 [b4,d5]@2 [c#5,e5]@2 f#5@2 ~@2 b5@2 c#6@2 e6@2 f#6@6 d6@2 g#6@4 e6@3 ~, [a4,c#5]@8 ~@4 d5 ~@3 a5@32 ~@16]/2", // Bm C#m A
  AL: "f6 c6 a#5 a5 ~@10 b4 g4, ~@3 g5, ~@13 d5@3", AM: "~@11 a4 c5 ~ e5 g5, ~@5 g4@3, ~@13 d5@3",
  AN: "e5@2 e6 d6, ~@16 d#6 ~@15",
  AO: "e6 d6 c6@2 a5@2 g5@2 f#5@8 ~@4 a5@2 g5@2 e5 d#5 d5@2 c5@2 a#4@2, ~ c6@2 ~ f5@2 ~@2", AP: "a4 g4",
  AQ: "~@4 a4 ~ a4@2 a4 ~ a4 ~ d5@2 d5 ~ c#5 ~ c#5 ~ b4 ~@3 a4@2 a4@2 g#4@2 g#4 ~, ~@11 b4@5",
  AR: "a4@2 ~@2 e4@2 e4 ~@3 d4 ~ e4@2 ~@2 a3 ~ a3@2 ~@2 e4@2 b3@2 ~@4 b3@2, ~ a4@7 ~@6 e4@2, ~@4 c#4@4 ~@2 d4@2 ~ b3@2 ~",
// … 266 more lines