// Change the World — Babyface
// 97 bpm, 4/4, key E major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: Tempo changes preserved in elapsed time; displayed bars use the dominant tempo.
// note: pitch bends are ignored
// note: Full arrangement: all 96 bars on a 16-step grid, each part at one level. Source detail keeps the original performance.
setcpm(97/4)

// 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 steel
const acoustic_guitar_steel = note(`<
  ~ A@2 B@4 C@2 D E F G H E I J K L M N O E F P Q R S T U V W X@2 Y@2 Z@3 E F G H E I J K L M N O E F P Q R S T U V W AA
  AB W X@2 Y@2 AC@3 E F P Q R S T U V W AD W AD W AE@2 AF@3 AG@3 ~@3
>`.pickRestart({
  A: "[[b3,d4,e4,g#4]@4 ~@2 [e4,f#4,a4]@5 ~@11 b4@9 ~, ~@14 [d4,e4,g4]@17 ~]/2", // E7 F#m7 Em7
  B: "[[d4,e4,g4,b4]@4 ~@2 [e4,f#4,a4,c#5]@5 ~@3 [d4,e4,g#4]@12 ~@6 g#4@4 ~@2 [e4,f#4,a4,c#5]@6 ~@10 e6@8 ~@2, ~@14 b3@9 ~@3 b3@10 ~@28, ~@28 d4@8 ~@10 [d4,e4,g4,b4]@17 ~, ~@30 e4@5 ~@29]/4", // Em7 F#m7 E7 F#m7 Em7
  C: "[~@2 g4@2 e4 ~ [e4,f#4,a4,c#5]@5 ~@15 a2 b2 g#2@2 e2@2, [d4,b4]@4 ~@10 [e4,f#4,a4]@17 ~]/2", // F#m7 G F#m7
  D: "[e3,g#3,b3]@3 ~ [e3,f#3,a3,c#4]@3 ~", E: "[e3,g#3,b3,d4]@7 ~", F: "[e3,g#3,b3,d4]@3 ~ [e3,f#3,a3,c#4]@3 ~",
  G: "[e3,g#3,b3]@7 ~", H: "[e3,g#3,b3]@6 ~@2 [e3,f#3,a3,c#4]@7 ~", I: "[e3,g#3,b3,d4]@6 ~@2 [e3,f#3,a3,c#4]@7 ~",
  J: "[e3,g#3,b3]@3 ~", K: "[c#3,e3,a3]@5 ~@3 [d3,f#3,a3,b3]@6 ~@2", L: "[e3,g3,a3,c#4]@7 ~",
  M: "[e3,g3,a3,c#4]@3 ~ [d3,f#3,a3,b3]@3 ~", N: "[c#3,e3,a3]@3 ~", O: "[e3,g#3,b3]@7 ~ [e3,f#3,a3,c#4]@6 ~@2",
  P: "[f#3,g#3,c4,d#4]@3 ~", Q: "[f#3,a3,c#4]@5 ~@3 [g#3,c4,d#4]@5 ~@3", R: "[c#3,e3,g#3]@3 ~",
  S: "[f#3,a3,c#4]@6 ~@2 [g#3,c4,d#4]@5 ~@3", T: "[c#3,e3,g#3]@13 ~@3", U: "[f#3,a3,c#4]@5 ~@3 [g#3,c4,d#4]@6 ~@2",
  V: "[c#3,e3,g#3]@3 ~ [c3,e3,g3,a#3]@3 ~ [d3,f#3,a3,b3]@6 ~@2", W: "[e3,a3,c#4]@7 ~ [e3,g#3,b3]@7 ~",
  X: "[[b2,g3] ~ [d3,g3,a#3] ~ [c#3,e3]@11 ~]/2", // Em Gm C#m
  Y: "[[b3,d4]@4 ~@2 [e4,f#4,a4]@5 ~@11 b4@9 ~, ~@14 [d4,e4,g4]@17 ~]/2", // Bm F#m7 Em7
  Z: "[[d4,e4,g4,b4]@4 ~@2 [e4,f#4,a4,c#5]@5 ~@3 [d4,e4,g#4]@12 ~@6 [e3,g#3,b3]@6 ~@2 [e3,f#3,a3,c#4]@6 ~@2, ~@14 b3@9 ~@3 b3@6 g#4@4 ~@12, ~@7 d4@2 ~@3, ~@30 e4@5 ~@13]/3", // Em7 F#m7 E7 E F#m7
  AA: "[b2,g3] ~ [d3,g3,a#3] ~ [c#3,e3] ~@3", AB: "[e2,e3,g#3]@4 b2 ~ [g3,b3]@6 [g3,b3]@3 ~, ~@6 [g2,e3]@9 ~",
  AC: "[[d4,e4,g4,b4]@4 ~@2 [e4,f#4,a4,c#5]@5 ~@3 [d4,e4,g#4]@12 ~@6 [e3,g#3,b3]@7 ~ [e3,f#3,a3,c#4]@6 ~@2, ~@14 b3@9 ~@3 b3@6 g#4@4 ~@12, ~@7 d4@2 ~@3, ~@30 e4@5 ~@13]/3", // Em7 F#m7 E7 E F#m7
  AD: "[b2,g#3] ~ [d3,g3,a#3] ~ [c#3,e3] ~@3", AE: "[[b2,g#3] ~ [d3,g3,a#3] ~ [c#3,e3]@11 ~]/2",
  AF: "[~@8 [b3,d4]@4 ~@2 [e4,f#4,a4]@5 ~@11 b4@9 ~ [d4,e4,g4,b4]@5 ~@3, ~@22 [d4,e4,g4]@17 ~@9]/3", // Bm F#m7 Em7
  AG: "[[e4,f#4,a4,c#5]@7 ~@4 [b3,d4,g#4]@22 ~@15, ~@11 e4@36 ~]/3", // F#m7 G#dim
})).s("gm_acoustic_guitar_steel").gain(0.19).pan(0)

// bass · electric bass finger · "Eric Clapton"
const bass = note(`<
  ~ A@2 B@2 A@2 C@2 D@2 E@2 F@4 G@4 H@2 I J K L M N O P Q R@2 S@2 B@2 T U V W X Y Z AA AB AC AD AE Z AF AG AH AI AJ M N
  O P Q AK AL Q R@2 AM@2 AN@2 Z AF AG AH AI AJ M N O P Q AK Q AK Q R@2 AO@3 AP@2 ~@4
>`.pickRestart({
  A: "[e2@6 f#2@8 g2@17 ~]/2", B: "[g2@6 f#2@8 e2@17 ~]/2", C: "[g2@6 f#2@9 b1@17]/2", D: "[e2@15 e1]/2",
  E: "[e2@30 b1 d2]/2", F: "[~@22 e3@9 ~@31 e1 g1, e2@59 ~@5]/4", G: "[a1@22 a2@4 a1@35 ~ b1 d2]/4", H: "e2/2", I: "e2",
  J: "g#1@6 g#2@4 g#1@2 g#2@2 g#1 ~", K: "f#1@4 ~ f#1 a#1 f#2 g#1@5 ~ g#1@2", L: "c#2@3 c#2 c#2@4",
  M: "f#1 f#2 g#1 g#2", N: "c#2@5 ~ c#2 ~ c#2@6 c#2@2", O: "f#1@3 f#2 g#1@2 g#2@2", P: "c#2 c2 b1!2", Q: "a1 g#1",
  R: "[b1@3 ~ a#1@3 ~ a1@20 ~@4]/2", S: "[~@6 f#2@8 g2@17 ~]/2", T: "~@2 e1 ~ e1 ~ e1 ~, e2@3 ~@5",
  U: "e2@2 ~@2 e2@2 ~@2 e2@2 e1 ~ e1@2 e2 ~", V: "e2@2 ~@2 e2@3 ~ e2@2 e1 ~ e1@3 ~",
  W: "e1@2 ~@2 e1@3 ~ e1@3 ~ b1 d2 e2 ~", X: "e1 ~@3 e1@2 ~@2 e1@2 ~@2 e1@3 ~", Y: "e1@3 ~ e1@3 ~ e1@3 ~ a1 b1 d2 ~",
  Z: "e1 ~@3 e1@2 ~@2 e1@2 ~@2 e1@2 e2@2", AA: "e1 ~@3 e1@3 ~ e1 ~ e1 ~ e1 g1 a1 ~",
  AB: "a1 ~@3 a1@2 ~@2 a1@2 ~@2 a1@2 ~@2", AC: "a1@3 ~ a1@3 ~ a1@2 a2@2 a1 ~ a1 ~",
  AD: "a1@2 ~@2 a1@2 ~@2 a1@2 ~@2 a1@3 ~", AE: "a1@3 ~ a1@3 ~ a1@2 a1@2 e2@2 a1 ~",
  AF: "e1 ~@3 e1@2 ~@2 e1@2 ~@2 e1@2 e2 ~", AG: "e1@2 ~@2 e1@3 ~ e1@3 ~ e1@4", AH: "g#1@3 ~ g#1@3 ~ g#1@3 ~ g#1@3 ~",
  AI: "f#1@5 ~ f#1@2 g#1@4 ~@2 g#1 ~", AJ: "c#2@4 ~@2 c#2 ~ c#2@3 ~ c#2 a#1 g#1 ~", AK: "b1@3 ~ a#1@3 ~ a1@4 ~@4",
  AL: "e1@3 ~ e1@2 g1@3 ~ g1@4 g2 ~", AM: "[e1@4 e1 ~ e1@2 f#1@4 f#1 ~ g1@8 g2@6 b1 d2 e2 ~]/2",
  AN: "[g1@5 ~ g1@2 f#1@3 ~ f#1@2 e1@8 e2@4 e1 ~ e1@2 e2 ~]/2", AO: "[~@14 f#2@8 g2@17 ~ g2@7 ~]/3",
  AP: "[f#2@11 e2@16 ~@5]/2",
})).s("gm_electric_bass_finger").gain(0.29)

// chords · epiano1
const epiano1 = note(`<
  A@3 B@4 C@2 D@4 E@2 F@2 G@4 H@2 I@2 J K@2 L@2 M@4 N@2 O@6 E@2 F@2 G@4 H@2 I@2 J K@2 L@2 P@3 Q R@3 N@2 S@4 I@2 J K@2
  L@2 T@3 U@2 V@3 W@6 ~@3
>`.pickRestart({
  A: "[~@15 g#5 [g#5,b5]@4 ~@2 [f#5,a5,c#6]@6 ~@2 [g5,b5]@16 ~@2, ~@15 d6@5 ~@28, ~@16 e5@12 ~ e5@16 ~@3]/3", // G#m F#m G
  B: "[[g5,b5]@4 ~@2 [f#5,a5,c#6]@6 ~@2 [g#5,b5,d6]@15 ~@2 g#5 [g#5,b5]@4 ~@2 [f#5,a5,c#6]@6 ~@2 [d5,e5,g5,b5]@15 ~@3, e5@29 ~@2 d6@5 ~@28, ~@32 e5@13 ~@19]/4", // G F#m G#dim G#m F#m Em7
  C: "[[d5,b5]@5 ~ [e5,f#5,a5,c#6]@6 ~@3 [e5,f#5,a5]@13 ~@4, [e5,g5]@3 ~@29]/2", // G F#m7 Em
  D: "[~@2 b3@2 ~@2 b3@2 [a3,c#4]@4 ~@2 [b3,d4]@12 e4@4 ~@2 d4@6 b3@2 c#4@5 ~ b3@8 d4@9 ~, ~@2 g#4@5 ~@7 g#4@17 ~ [e4,g#4]@8 e4@24, ~@2 e4@10 ~@3 b3@3 ~@5 g#4@8 ~]/4", // A Bm E
  E: "[~@4 d4@2 b3 ~ [a3,c#4]@4 ~@2 b3@6 ~@2 b3@7 ~@3, [b3,g#4]@5 ~@9 [d4,g#4]@15 ~@3, ~@2 e4@21 ~@9]/2", // A E Ddim
  F: "[[b3,d4,g#4]@7 ~ [a3,c#4]@4 ~@2 b3@8 ~@4 b3@4 ~@2, ~@8 e4@21 ~@3, ~@14 g#4@15 ~@3, ~@22 d4@7 ~@3]/2", // G#dim A
  G: "[[a3,c#4,e4]@6 ~@2 [b3,d4,f#4]@4 ~@2 [c#4,e4,g4]@16 ~@2 [e4,g4]@6 ~@2 [b3,d4,f#4]@5 ~ [a3,c#4,e4]@14 ~@4, ~@7 a3@5 ~@3 a3@4 ~@13, ~@4 c#4 ~@3]/4", // A Bm C#dim Em Bm A
  H: "[~@4 d4@2 b3 ~ [a3,c#4]@4 ~@2 [b3,d4,g#4]@15 ~@3, g#4@3 ~@13, b3 ~@7, ~@2 e4@27 ~@3]/2", // A G#dim
  I: "[~@4 d4@2 b3 ~ [a3,c#4]@5 ~@2 c4 c4@6 ~@4 c4@2 g#3@2 ~@2, g#4@3 ~@13, b3@4 ~@11 g#3@5 ~@2 g#3@4 ~@6, ~@2 e4@10 ~@3 d#4@8 ~ d#4@6 ~@2]/2", // A
  J: "f#4@4 a4 ~@8 f#4@2 ~, c#5@6 ~@2 [g#4,c5,d#5]@7 ~", // G#
  K: "[c#4@6 ~@4 c#4@3 ~@3 [e4,f#4,c#5]@6 ~@2 [f#4,g#4,c5,d#5]@5 ~@3, g#4@13 ~@2 a4@6 ~@11, ~@3 e4@3 ~@10]/2", // F#7 G#7
  L: "[[c#4,e4,g#4,b4]@13 ~@2 [f#4,a4] [f#4,a4]@5 ~@4 g#4@4 ~@3, ~@15 [e4,c#5]@6 ~@3 [f#4,c5,d#5]@5 ~@3]/2", // C#m7 F#m C#m Cdim
  M: "[[c#4,e4,g#4,b4]@2 ~@2 [c4,e4,g4,a#4]@3 ~ [d4,f#4,b4]@7 ~ [e4,c#5]@6 ~ f#4 [g#3,e4,g#4]@7 ~ [g3,b3,d4,e4,g4]@4 [g3,a#3,d4]@3 ~ [e3,f#3,a3,c#4]@24, ~@8 a4@15 ~ b4@11 ~@29, ~@16 a3@7 ~@17 g#3@4 ~@20]/4", // C#m7 C7 Bm C#m Em7 Gm F#m7
  N: "[g#5@2 ~ [f#5,a5,c#6]@3 ~ [g5,b5]@8 ~, e5@12 ~ e5@16 ~@3]/2", // F#m G
  O: "[[g5,b5]@4 ~@2 [f#5,a5,c#6]@6 ~@2 [g#5,b5,d6]@15 ~@2 g#5 ~@2 b3@2 ~@2 b3@2 [a3,c#4]@4 ~@2 [b3,d4]@12 e4@4 ~@2 d4@6 b3@2 c#4@5 ~ b3@8 d4@9 ~, e5@29 ~@2 d6@5 ~@60, ~@32 e5@13 ~@33 g#4@16 ~@2, ~@16 b5@2 e4@10 ~@3 b3@3 ~@14, ~@34 g#4@5 ~@7 g#4@17 ~ [e4,g#4]@8 e4@24]/6", // G F#m G#dim A Bm E
  P: "[[c#4,e4,g#4,b4]@2 ~@2 [c4,e4,g4,a#4]@3 ~ [d4,f#4,b4]@7 ~ [e4,c#5]@6 ~ f#4 [g#3,e4,g#4]@7 ~ [g3,b3,d4,e4,g4]@4 [g3,a#3,d4]@3 ~ [e3,f#3,g#3,a3,c#4]@4 ~@4, ~@8 a4@15 ~ b4@11 ~@13, ~@16 a3@7 ~@25]/3", // C#m7 C7 Bm C#m Em7 Gm F#m7
  Q: "[e4,g#4,b4,e5]@5 ~ [e4,g4,b4]@9 ~", // E Em
  R: "[[e4,c#5]@6 ~ f#4 [g#3,e4,g#4]@7 ~ [g3,b3,d4,e4,g4]@4 [g3,a#3,d4]@3 ~ [e3,f#3,a3,c#4]@24, a3@7 ~ b4@11 ~@5 g#3@4 ~@20]/3", // C#m Em7 Gm F#m7
  S: "[[g5,b5]@4 ~@2 [f#5,a5,c#6]@6 ~@2 [g#5,b5,d6]@15 ~@2 g#5 ~@4 d4@2 b3 ~ [a3,c#4]@4 ~@2 [b3,d4,g#4]@15 ~@3, e5@29 ~@2 d6@3 e4@27 ~@3, ~@32 e5@13 ~@19, ~@16 g#4@3 ~@13, ~@8 [b3,b5] ~@7]/4", // G F#m G#dim A G#dim B
  T: "[[c#4,e4,g#4,b4]@2 ~@2 [c4,e4,g4,a#4]@3 ~ [d4,f#4,b4]@7 ~ [e4,c#5]@6 ~ f#4 [g#3,e4,g#4]@7 ~ [g3,g#3,b3,d4,e4,g4]@4 [g3,a#3,d4]@3 ~ [e3,f#3,g#3,a3,c#4]@4 ~@4, ~@8 a4@15 ~ b4@11 ~@13, ~@16 a3@7 ~@25]/3", // C#m7 C7 Bm C#m E7 Gm F#m7
  U: "[[e4,c#5]@6 ~ f#4 [g#3,e4,g#4]@7 ~ [g3,g#3,b3,d4,e4,g4]@4 [g3,a#3,d4]@3 ~ [e3,f#3,g#3,a3,c#4]@4 ~@4, a3@7 ~ b4@11 ~@13]/2", // C#m E7 Gm F#m7
  V: "[[e4,c#5]@6 ~ f#4 [g#3,e4,g#4]@7 ~ [g3,g#3,b3,d4,e4,g4]@4 [g3,a#3,d4]@3 ~ [e3,f#3,a3,c#4]@24, a3@7 ~ b4@11 ~@5 g#3@4 ~@20]/3", // C#m E7 Gm F#m7
  W: "[~@15 a5@5 ~@3 g5@15 ~@2 [g5,b5]@5 ~@3 [f#5,a5,c#6]@9 ~@3 [g#5,d6]@26 ~@10, ~@8 g#5@4 ~@2 [f#5,c#6]@6 ~@39 b5@26 ~@11, ~@9 e5@12 ~ [e5,b5]@16 ~@2 e5@45 ~@11]/6", // G F#m G#dim F#5 E5
})).s("gm_epiano1").gain(0.29).pan(0)

// chords · acoustic guitar steel · "Edmonton, Alberta, Canada"
const acoustic_guitar_steel_2 = note(`<
  ~ A@2 B@2 C@2 D@2 E@4 F@2 G@2 H@4 I@3 J K L M N O P Q R@2 S@2 B@2 T U V W V X Y@2 Z AA AB AC AD AE AF AG ~ L AH AI O P
  Q AJ@2 Q R@2 ~@9 L M N O P Q AK@4 AL@2 AM@7 ~@2
>`.pickRestart({
  A: "[g#3 ~ g#3 a3@3 ~ b3@7 ~@2, e3 ~ e3@26 ~@4, ~@3 d4@4 ~]/2",
  B: "[e3 ~@11 g#3@2 e3@15 ~@3, b3@3 a3@4 ~@9, ~ e3@5 ~@10]/2",
  C: "[~@2 e3@2 ~@4 a3@4 ~@2 b3@15 ~@3, g#3@8 ~@4 d4@17 ~@3, ~@6 e3@23 ~@3]/2",
  D: "[[e3,b3]@4 a3 ~ [e3,a3]@4 g#3 ~ e3 d3 b2@15 ~@3]/2", // E5 A5
  E: "[~@10 e4@2 ~@2 e4@11 ~@9 e4@2 b3@2 ~@2 b3@2 ~@4 b3@3 ~@5 e5@10, ~ e4@3 e3@11 e5@11 ~@6, ~@4 b3@5 ~@3 b3@5 ~@9 e4@6 e3@17 ~@15, ~@6 e5@21 ~ b3@6 ~@4 e4@17 ~@9]/4",
  F: "[~@2 e4 ~ b3 e4 ~@9 e4, e3@6 b3@3 ~@5 b3@2, ~ b3@2 e5@13, ~@7 e4@5 ~@4, ~@8 e3@7 ~]/2",
  G: "[~@2 e4@2 ~@2 e4@2 ~@2 e4@2 ~@2 e4@2 b3@3 ~@7 e5@6, e3@19 ~@13, ~@4 e5@6 ~@2 e5@9 ~@3 g5@8, ~@8 b3@5 ~@19]/2",
  H: "[~@2 a4@2 ~@2 a4@2 ~@4 a3@2 e5@10 ~@2 e4@2 ~@2 e4@2 ~@2 e4@2 a4@2 e4@2 ~@2 g4 ~@5 a3@3 ~@5 g4@2 e4@6, a3@10 a4@14 a3@6 ~@2 a3@6 ~@2 a3@7 ~@17, ~@4 e5@7 ~@17 a4@7 ~@9 e5@10 ~@10, ~@8 e3@21 ~@17 a4@9 ~@9]/4",
  I: "[~@2 e4@2 ~@4 b3@2 ~@20 e4@2 ~@4 b3@2 ~@4 e4@3 ~ e4@2, e3@16 ~@16 e3@13 ~@3, ~@4 e5@6 b4@4 e4@15 ~@5 e4@5 ~ b3@5 ~@3, ~@6 e4@5 ~ b3@4 ~@6 e5@12 ~@4 e5@10]/3",
  J: "~@2 g#4 ~@2 g#4 d#5 g#4, g#3@13 ~@3, ~@2 d#4@4 d#5@5 ~@5, ~@8 d#4@5 ~@3",
  K: "~@3 a4 ~ d#4 [g#4,d#5]@2, f#3 [f#4,c#5] ~@2, ~@2 c#4@4 ~@2 g#3@5 ~@3", // G#5 F#5
  L: "~@6 b3 c#4, c#3@13 ~@3, ~@2 g#3@11 ~@3, ~@2 b3@2 g#4@3 ~, ~@3 c#4@2 e4@2 ~",
  M: "~@6 a4@2 ~@2 d#4@2 ~@2 c5 ~, f#3@6 ~@2 g#3@5 ~@3, ~@2 c#4@5 ~@9, ~ [f#4,c#5] ~ [g#4,d#5]", // F#5 G#5
  N: "~@6 e4 c#4, b3@15 ~, ~@2 g#3@8 g#4@5 ~, ~@4 c#4@9 ~@3, ~@3 e4 c#3@2 ~@2",
  O: "~@6 f#4@2 ~@2 d#4@2 d#5@2 g#4 ~, f#3@6 ~@2 g#3@5 ~@3, ~@2 c#4@5 ~@9, ~@4 c#5@5 ~@7",
  P: "[c#3,c#4,g#4]@2 g#3 ~ [g3,c4,g4]@3 ~@5 b4@2 f#4 ~, ~ b3, ~@4 [d4,f#4]@3 ~", // C#5 C5 D
  Q: "a4@4 c#5@2 a4 ~ [g#3,g#4]@4 b4@2 g#4@2, e4@15 ~, a3 ~", // G#
  R: "[[e3,g3,b3]@2 ~@2 [g3,a#3]@2 ~ a3 [f#2,e3,a3,c#4]@24, ~@7 f#3@25]/2", // Em Gm F#m7
  S: "[e3 ~@3 g#3@2 a3@6 ~@2 b3@14 ~@4, ~ e3@13 ~@2, ~@3 d4@4 ~]/2",
  T: "~ e2 e3!2 e2 ~@2 e3 e2@2 e3!2 e2 ~ e3!2, g#3 ~", U: "e2 ~ e3!2 e2 ~ e3!2 e2 ~ e3!2 e2@2 e3@2",
  V: "e2 ~ e3!2 e2 ~ e3!2 e2 ~ e3!2 e2 ~ e3!2", W: "e2@2 e3 ~ e2 ~ e4@2 g4@2 e4@4 g4@2",
  X: "e2 ~ e3 ~ e2 ~ d3@2 e2 ~ e3 ~ e2 ~ e3@2",
  Y: "[e2 ~ e3!2 e2 ~ e3 ~ e2 ~ e3@2 e4@2 e3@4 e4@2 e2@2 e3@2 e2 ~ e3@2 ~@2 g4@2]/2",
  Z: "a3 ~ a3 ~ a3@2 a2@2 a3 ~ a3!2 a2 ~ a3@2", AA: "a2 ~ a3!2 a2 ~ e3@2 a2 ~ a3@2 a2 g3 ~ g3",
  AB: "a2 ~ a3@2 a2 ~ a3 ~ a2 ~ g3 ~ a2 a3 a2 a3", AC: "a2 ~ a3 ~ a3 ~ a3 ~@3 e4@3 ~ e4@2, ~@4 g4@3 ~",
  AD: "e2 ~ e3!2 e2 ~ e3!2 e2 ~ e3!2 e2 ~ e3@2", AE: "e2@2 e3@2 e4 ~@3 e2 ~ e4@2 e2 e3 e2 e3, ~@3 e3@2 ~@3",
  AF: "e2 ~ e3!2 e2 ~ e3@2 e2 ~ e3@2 e2 ~ e3@2", AG: "g#2@2 ~@2 g#2@2 ~@2 g#2@2 g#3@2 g#2@2 g#2 ~, ~ g#3@2 d#4@3 ~@2",
  AH: "~@3 a4 ~ d#4 ~ c5, f#3@6 ~@2 g#3@5 ~@3, ~@2 c#4@5 ~@9, ~ [f#4,c#5] ~ [g#4,d#5]", // F#5 G#5
  AI: "~@12 e4@2 c#4 ~, b3@15 ~, ~@2 g#3@8 g#4@5 ~, ~@4 c#4@9 ~@3, ~@3 e4 c#3@2 ~@2",
  AJ: "[[e3,g3,b3]@2 ~@2 [g3,a#3]@2 ~ a3 [f#2,e3,a3,c#4]@4 ~@8 c#4 ~ [c#4,e4] ~ e4@7 ~, ~@7 f#3@25, ~@18 b3@4 ~ b3@8 ~]/2", // Em Gm F#m7 C#m
  AK: "[[e3,b3]@3 ~ [g3,a#3]@2 ~ a3 [f#2,e3,a3,c#4]@4 ~@4 a4@4 c#5@2 a4 ~ [g#3,g#4]@4 b4@2 g#4@2, ~@7 f#3@25, ~@16 e4@15 ~, ~@2 a3 ~]/2", // E5 Gm F#m7 G#
  AL: "[[e3,b3]@3 ~ [g3,a#3]@2 ~ a3 [f#2,e3,a3,c#4]@24, ~@7 f#3@25]/2", // E5 Gm F#m7
  AM: "[~@8 e3 ~@3 g#3@2 a3@6 ~@2 b3@14 ~@4 e3 ~@18 e3@41 ~@12, ~@10 e3@26 ~@7 e3@13 g#3@38 ~@18, ~@5 d4@4 ~ b3@2 a3@3 ~@13]/7",
})).s("gm_acoustic_guitar_steel").gain(0.22)

// chords · rock organ
const rock_organ = note(`<
  A B@6 C@2 ~@14 D E F G H G I J K L@2 M@5 ~@13 D E F G H G I J K N O P Q@2 R S@2 T@3 U V F G H G I J K N P N P W@2 X@3
  Y@3 ~@3
>`.pickRestart({
  A: "~@13 [f4,g4] [g4,a4,b4,c5,d5] [d5,e5,f5,g5,a5,b5,c6,d6]", // Fsus2 G Dm7
  B: "[[b5,c6,d6] ~@57 b5@2 c#6@2 e6@34, e6@56 g#5@5 ~ d#6 ~@33]/6", C: "[~@15 b5@17, e6]/2",
  D: "~@12 [a#3,c#4,d#4,f#4] [g#4,a#4,c#5,d#5] [f#5,g#5,a#5] c#6", E: "c#6@4 c6@3 ~, g#5",
  F: "[f#5,a5]@7 ~ g#5@8, ~@4 c6@3 ~", G: "[c#6,e6]", H: "[f#5,a5] [g#5,c6]", I: "[f#5,a5]@4 [g#5,c6]@3 ~",
  J: "[c#6,e6]@4 [c6,e6]@4 [b5,d6]@7 ~", K: "[a5,c#6] [e5,g#5]", L: "[b5 a#5 a5@5 ~]/2",
  M: "[e6@56 e6@17 ~@7, d6 ~@79]/5", N: "b5 a#5 a5 ~", O: "[b4,e5]", P: "c#6 [e5,g#5]",
  Q: "[b5 a#5 [e5,f#5,c#6]@5 ~]/2", R: "[e5,g#5] [f#5,a5]", S: "[b5@15 ~ b5@8 [f#5,a5]@8, g5@3 ~]/2",
  T: "[[e5,g#5]@3 ~ b4 c#5 e5 ~ e5 g#5 b5 ~@2 c#6 e6@2 [g6,g#6] ~ e6@20 ~@5 [g5,a5] [c5,d5,e5,f5] b4 [b4,c5] [d5,e5,f5], ~@12 b5@31 ~@2 a4@2 ~, ~@18 f6 ~@29]/3", // E G#maj7 Gsus2 Dm7 Cmaj7 Dm
  U: "[d5,g5,b5]@7 ~ [e5,a5]@6 ~@2, a5 ~@15", V: "~@4 c6@3 ~", W: "[b5 a#5 [c#5,f#5,e6]@5 ~]/2",
  X: "[~@9 [e5,g#5,b5]@5 [f#5,a5,c#6]@8 [b5,d6]@18 d5@7 ~, ~@11 g5@13]/3", // E F#m Bm
  Y: "[a5@12 ~ g#5@34 ~, e5@23 ~, ~@12 b5@35 ~]/3",
})).s("gm_rock_organ").gain(0.19).pan(1)

// other · acoustic guitar nylon
const acoustic_guitar_nylon = note("<~@66 A B C D E F G H ~@17 I@2 ~@3>".pickRestart({
  A: "~@2 [b4,d5] ~ [b4,d5] ~ [b4,d5] ~ [b4,d5] ~ [b4,d5] ~ [b4,d5] ~ [b4,d5] ~", B: "b4@2 a4 g4@4 ~",
  C: "~@4 e4@2 d4@2 e4@2 d4@2 b3@2 d4 ~, ~ g4@6 ~", D: "a3 g3 e3@10 e3 a3 b3 ~",
  E: "~@3 b4 ~ d5 ~ e5!2 ~ e5!2 ~ e5 d5 b4", F: "~ a4 b4 a4 g4!2 ~ [g4,a4] e4@6 ~@2",
  G: "~@2 g5@4 e5 ~ e5@4 g#5@2 e5@2", H: "d#5@2 [c5,f#5] [c5,e5]",
  I: "[d3 e3 d3 ~ b2 a2 b2 a2 ~ g2 a2@2 ~ e2@12 ~@7]/2",
})).s("gm_acoustic_guitar_nylon").gain(0.41)

// drums · kick
const kick = s("bd").struct(`<
  ~ A@4 B A@3 B A@3 B A@3 B A@3 B A@3 B A@3 B A@3 B A@4 B A@3 B A@3 B A@3 B A@3 B A@3 B A@3 B A@2 B A@8 B A@3 B A@7 B C
  A B D ~@5
>`.pickRestart({
  A: "x ~@2 x!2 ~@2 x", B: "x ~@2 x!2 ~@3", C: "~@4 x ~@2 x", D: "x ~ x ~@8 x ~@4",
})).gain(0.4).pan(0)

// drums · snare
const snare = s("sd").struct("<~@37 A B@11 C B@11 D B@19 D B D B ~@11>".pickRestart({
  A: "~@5 x!3", B: "~ x ~ x", C: "~ x ~@2", D: "~@3 x",
})).gain(0.31).pan(0)

// drums · hihat
const hihat = s("hh").struct(`<
  ~ A B A@2 B@2 A@2 B@2 A@2 B@2 A@2 B@2 A@2 B@2 A@2 B@2 A@2 B@2 A@2 B C B A@2 B@2 A@2 B@2 A@2 B@2 A@2 B@2 A@2 B@2 A@2
  B@2 A@2 B A@2 B C B A@2 C B A@2 B@2 A@2 B@2 A@6 B D A E F ~@5
>`.pickRestart({
  A: "x!8", B: "x!7 ~", C: "~ x!7", D: "~@5 x!3", E: "x ~ x ~ x ~@3 x ~@2 x ~ x ~@2", F: "x ~ x ~@2 x ~@2 x ~@7",
})).gain(0.4).pan(0)

// drums · low tom
const low_tom = s("lt").struct("<~@49 [~@5 x ~@2] ~@3 [~@5 x!2 ~] ~@19 [~@7 x] ~@22>").gain(0.31).pan(0)

// drums · mid tom
const mid_tom = s("mt").struct("<~@45 A ~@3 B ~@3 C ~@13 A ~@3 A ~ D ~@22>".pickRestart({
  A: "~@5 x ~@2", B: "~@6 x!2", C: "~@7 x", D: "~@10 x ~@2 x ~@2",
})).gain(0.31).pan(0)

// drums · open hat
const open_hat = s("oh").struct(`<
  ~@2 A ~@2 A@2 ~@2 A@2 ~@2 A@2 ~@2 A@2 ~@2 A@2 ~@2 A@2 ~@2 A@2 ~@2 A ~ A ~@2 A@2 ~@2 A@2 ~@2 A@2 ~@2 A@2 ~@2 A@2 ~@2
  A@2 ~@2 A ~@2 A ~ A ~@3 A ~@2 A@2 ~@2 A@2 ~@6 A ~@2 B C ~@5
>`.pickRestart({
  A: "~@7 x", B: "~@3 x ~@4", C: "~@11 x ~@4",
})).gain(0.4).pan(0)

// drums · high tom
const high_tom = s("ht").struct("<~@45 [~@7 x] ~@21 [~@7 x] ~@3 [~@7 x] ~@24>").gain(0.31).pan(0)

// drums · crash
const crash = s("cr").struct("<~@54 A ~@4 B ~@2 A ~@11 A ~@4 B ~@2 A ~ A ~@11>".pickRestart({
  A: "x", B: "x!2",
})).gain(0.31).pan(0)

// … 14 more lines