// VARJAZZIONI (4 hands piano) — Remigio Coco
// 150 bpm, 12/8, key C minor. 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 (12/8 at bar 1, 9/8 at bar 2, 12/8 at bar 3, 9/8 at bar 4, ...) are rendered on a constant 12/8 grid of one bar per cycle
// note: Transcription provider: pdmx. https://musescore.com/score/5927770; license: https://creativecommons.org/publicdomain/zero/1.0/
// note: Full arrangement: all 122 bars on a 32-step grid, each part at one level. Source detail keeps the original performance.
setcpm(150/6)

// 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
const piano = note(`<
  A@4 B C D E F@2 G H@3 I J B C D E F@2 G H@3 I J K L M N O@3 P Q@2 R S T U V W X@2 Y@3 Z@4 AA AB AC AD AE AF AG AH AI
  AJ AK AL@2 AM AN@3 AO AP AQ AR AS AT AU AV@4 AW@7 AX@2 AY AZ@3 BA@5 BB BC@3 BD BE@3 BF BG@2 BH BI@2 BJ@3 BK BL@2 BM@2
  BN
>`.pickRestart({
  A: "[~@16 [c6,gb6,g6]@53 ~@3 [c6,gb6,g6]@53 ~@3]/4", // C
  B: "~@5 [gb5,gb6]@3 [f5,f6]@5 [g5,g6]@3 [eb5,eb6]@3 [e5,e6]@2 [c5,c6]@3 ~@5 [gb5,gb6]@3", // Gb F G Eb E C Gb
  C: "[f5,f6]@5 [g5,g6]@3 [eb5,eb6]@3 [e5,e6]@2 [c5,c6]@10 ~@6 [gb5,gb6]@3", // F G Eb E C Gb
  D: "[f5,f6]@5 [g5,g6]@3 [eb5,eb6]@3 [e5,e6]@2 [c5,c6]@3 ~@5 [gb5,gb6]@3 [f5,f6]@5 [g5,g6]@3", // F G Eb E C Gb F G
  E: "[eb5,eb6]@3 [e5,e6]@2 [c5,c6]@10 ~@6 [b5,b6]@3 [bb5,bb6]@5 [c6,c7]@3", // Eb E C B Bb C
  F: "[[ab5,ab6]@3 [a5,a6]@2 [f5,f6]@3 ~@5 [b5,b6]@3 [bb5,bb6]@5 [c6,c7]@3 [ab5,ab6]@3 [a5,a6]@2 [f5,f6]@10 ~@6 [gb5,gb6]@3 [f5,f6]@5 [g5,g6]@3 [eb5,eb6]@3 [e5,e6]@2 [c5,c6]@3]/2", // Ab A F B Bb C Ab A …
  G: "[bb4,bb5]@5 [g4,g5]@3 [c5,c6]@5 ~@8 [c5,c6]@10 ~", // Bb G C
  H: "[eb5 [eb5,eb6] eb6 [eb5,eb6] eb5 [eb5,eb6] eb6 eb6@6 [bb4,c5,c6]@10 ~ g5 [g5,g6] g6 [g5,g6] g5 [g5,g6] g6 g6@6 [bb4,c5,c6]@10 ~ eb5 [eb5,eb6] eb6 [eb5,eb6] eb5 [eb5,eb6] eb6 eb6@6 [bb4,c5,c6]@10 ~ [bb4,bb5]@5 gb5@3 f5@5 eb5@10 ~, c5@13 ~@18 g5 ~@23 eb5 ~@40, ~@7 eb5 ~@16 d5@13 ~@11 c5@13 ~@35]/3", // Eb Bbsus2 G Bbsus2 Eb Bbsus2 Bb
  I: "~@5 [g5,g6]@3 [c5,c6]@5 [bb4,bb5]@3 [a4,a5]@5 [f5,f6]@3 [a4,a5]@5 [ab4,ab5]@3", // G C Bb A F A Ab
  J: "[g4,g5]@8 eb6 [e6,g6]@4 [g5,c6,g6]@18 ~, ~@8 gb5@5 ~@19", // G Em C5
  K: "~@5 g6@3 f6@3 gb6@2 g6@3 eb6@3 e6@2 c6@3 bb5@3 b5@2 [g5,c6]@3", // C5
  L: "f5@3 gb5@2 [g5,c6]@3 eb5@3 e5@2 c5@3 bb4@3 b4@2 c5@3 eb5@5 [c5,g6]@3, eb6@5 ~@3 bb5@5 c6@10 ~@9", // C5
  M: "f6@3 gb6@2 g6@3 eb6@3 e6@2 c6@3 bb5@3 b5@2 [eb5,c6]@3 gb5@3 g5@2 [bb4,c6]@3, bb4@5 c5@15 ~@4 c5@5 ~@3", // Cm Bbsus2
  N: "eb5@3 e5@2 c6@10 ~@6 c7@3 ~@3 e6@2 [f6,c7]@3, c5@15 ~@9 bb6@5 ~@3", // F5
  O: "[~@3 b5@2 [c6,a6]@3 ~@3 ab5@2 [a5,f6]@3 ~@3 e5@2 [f5,c6]@3 [b4,ab5]@5 [c5,a5]@10 ~@6 gb6 g6@2 c7@5 gb6@3 f6@5 eb6@3 c6@5 bb5@3 [g5,c6]@3 [gb5,b5]@2 [f5,bb5]@3 [e5,a5]@3 [eb5,ab5]@2 [d5,g5,c6]@10 ~, ab6@5 ~@3 e6@5 ~@3 b5@5 ~@24 bb5@8 a5@8 ab5@10 ~ e6@8 d6@5 ~@11]/3", // F Dm F5 E F C5 B5 Bb5 …
  P: "[c5,a5,eb6]@3 ~@10 [d5,bb5,c6]@10 ~ [d5,b5,g6]@3 ~@5", // Adim Gm G
  Q: "[~@5 [d5,bb5,c6]@10 ~ [c5,a5,eb6]@3 ~@10 [d5,bb5,c6]@10 ~ [b4,f5,bb5]@5 [a4,d5,f5]@5 ~ [a4,d5,gb5]@5 [b4,e5,g5]@8]/2", // Gm Adim Gm Bb Dm D Em
  R: "~@5 gb6 g6@2 c7@5 gb6@3 f6@5 eb6@3 c6@5 bb5@3, ~@5 bb5@8 a5@8 ab5@10 ~",
  S: "[g5,c6]@8 [g5,b5,gb6]@5 [c5,bb5,g6]@18 ~", // C5 Gmaj7 C7
  T: "~@5 [c5,g6]@3 f6@3 gb6@2 [b4,d5,g6]@3 eb6@3 e6@2 [bb4,e5,c6]@3 bb5@3 b5@2 [a4,f5,c6]@3", // C5 G C7 F
  U: "eb6@5 [ab4,gb5,c6]@3 bb5@3 b5@2 [g4,g5,c6]@3 ~@5 eb6@3 c6@3 bb5@2 b5@3, ~@21 [ab4,gb5]@10 ~", // Ab7 C5 Ab7
  V: "c6@5 ~@16 bb5@11, [g4,g5]@15 ~ eb5@15 ~, ~@5 eb6@15 ~@12", // G
  W: "bb5@5 a5@10 ~ [d5,g5]@2 ~@11 [c5,f5]@3, d5@15 ~@17", // G5 F5
  X: "[[b4,e5]@5 [bb4,eb5]@10 ~ [bb4,d5]@5 [a4,g5]@3 [ab4,db5]@5 [g4,c5]@10 ~@6 c7@3 bb6@3 b6@2 c7@3 ab6@3 a6@2 f6@3, ~@6 [f5,ab5] ~]/2", // E5 Eb5 Bb A7 Db5 C5 Fm
  Y: "[eb6@3 e6@2 f6@3 ab6@5 f6@3 [gb5,eb6]@5 f5@3 db5@3 d5@2 bb4@3 ab4@5 bb4@10 ~ a6@5 gb6@3 [e5,a5,e6]@5 [eb5,db6,gb6]@10 ~ [d5,g5]@5 [db5,gb5]@10 ~ eb6@5 c6@3, [f5,ab5]@8 ~@13 f6@25 ~@2 b5@8 ~@40]/3", // Ebm A5 Ebm7 G5 Gb5 Fm
  Z: "[bb5@5 ~@3 ab5@5 f5@3 eb5@5 f5@3 db6@3 bb5@2 ab5@3 f5@3 eb5@2 f5@3 c6@3 a5@2 g5@3 e5@3 d5@2 e5@3 ~@5 [bb4,f5]@5 ~ [b4,gb5]@5 [c5,g5]@5 [db5,ab5]@5 ~ [d5,a5]@5 bb5 [bb5,db6] db6 [bb5,db6] bb5 [bb5,db6] db6 [bb5,db6] bb5 [bb5,db6] db6 [bb5,db6] bb5 [bb5,db6] db6 [bb5,db6] g5 [g5,bb5] bb5 [g5,bb5] g5 [g5,bb5] bb5 [g5,bb5] g5 [g5,bb5] bb5 [g5,bb5] g5 [g5,bb5] bb5 [g5,bb5] ~@5 [gb5,gb6]@3, ~@5 c6@18 ~@6 db6@10 ~@6 c6@10 ~@33 eb5@15 ~ db5@15 ~@9]/4", // Bb5 B5 C5 Db5 D5 Bbm Gm Gb
  AA: "[f5,f6]@5 [g5,g6]@3 [eb5,eb6]@3 [e5,e6]@2 [c5,c6]@3 bb4@5 [g4,g5]@3 c6@2 ~@6", // F G Eb E C G
  AB: "~@24 g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] ~ g5", // G5
  AC: "[d6,g6] g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] g5 ~ [d6,g6] g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] g5 ~ [d6,g6] g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] g5", // G5
  AD: "[d6,g6] ~ g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] ~ g5 [d6,g6] ~ g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] g5 ~ [d6,g6] g5 [d6,g6] g5", // G5
  AE: "[d6,g6] g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] ~ g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] ~ g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] g5 [d6,g6] g5 ~ [d6,g6]", // G5
  AF: "g5 [d6,g6] ~ [c5,g5] [gb5,d6,g6] [c5,g5] [gb5,d6,g6] [c5,g5] [gb5,d6,g6] [c5,g5] [gb5,d6,g6] g5 c5 [gb5,d6,g6] [c5,g5] [gb5,d6,g6] [c5,g5] [gb5,d6,g6] [c5,g5] [gb5,d6,g6] [c5,g5] [gb5,d6,g6] g5 [c5,d6,g6] gb5 [c5,g5] [gb5,d6,g6] [c5,g5] [gb5,d6,g6] [b4,g5] [f5,d6,g6] g5", // G5 C5 Gmaj7 C5 Gmaj7 C5 Gmaj7 C5 …
  AG: "[b4,d6,g6] [f5,g5] [b4,d6,g6] [f5,g5] b4 [f5,d6,g6] [b4,g5] [f5,d6,g6] [b4,g5] [d6,g6] [f5,g5] [b4,d6,g6] [f5,g5] [b4,d6,g6] [f5,g5] [b4,d6,g6] f5 [b4,g5] [f5,d6,g6] [b4,g5] [d6,g6] [f5,g5] [b4,d6,g6] f5 [ab4,f5] [e5,f6] [ab4,f5] [e5,f6] [ab4,f5] ~ [e5,f6] [ab4,f5]", // G Fsus2 G Fsus2 G7 Em G7 Em …
  AH: "[e5,f6] [ab4,f5] [e5,f6] [ab4,f5] [e5,f6] [ab4,f5] [e5,f6] [ab4,f5] ~ [e5,f6] [ab4,f5] [e5,f6] [ab4,f5] [e5,f6] [ab4,f5] [e5,f6] [ab4,f5] [e5,f6] ~ [ab4,eb5] [db5,eb6] [ab4,eb5] [db5,eb6] [ab4,eb5] [db5,eb6] [ab4,eb5] [db5,eb6] ~ [ab4,eb5] [db5,eb6] [ab4,eb5] [db5,eb6]", // Fmaj7 Db Fmaj7 Db Fmaj7 Db Fmaj7 Db …
  AI: "[ab4,eb5] [db5,eb6] [ab4,eb5] [db5,eb6] [ab4,eb5] [db5,eb6] ~ [ab4,eb5] [db5,eb6] [ab4,eb5] [db5,eb6] [ab4,eb5] [db5,eb6] [c5,g5] [gb5,g6] ~ [c5,g5] [gb5,g6] [c5,g5] [gb5,g6] [c5,g5] [gb5,g6] [c5,g5] [gb5,g6] [c5,g5] g6 [gb5,g5] c5 [gb5,g6] [c5,g5] [gb5,g6] [c5,g5]", // Ab5 Dbsus2 Ab5 Dbsus2 Ab5 Dbsus2 Ab5 Dbsus2 …
  AJ: "[gb5,g6] [c5,g5] [gb5,g6] [c5,g5] g6 [gb5,g5] [c5,g6] gb5 [d5,g5] [f5,g6] [d5,g5] [f5,g6] [d5,g5] g6 [f5,g5] [d5,g6] [f5,g5] [d5,g6] f5 [d5,g5] [f5,g6] [d5,g5] [f5,g6] [d5,g5] g6 [f5,g5] [d5,g6] [f5,g5] [d5,g6] [f5,g5] d5 [f5,g6]", // Gmaj7 C5 Gmaj7 C5 Gmaj7 C5 G5 Fsus2 …
  AK: "[d5,g5] [f5,g6] ~ [db5,g5] [f5,g6] [db5,g5] [f5,g6] [db5,g5] [f5,g6] [db5,g5] [f5,g6] g5 db5 [f5,g6] [db5,g5] [f5,g6] [db5,g5] [f5,g6] [db5,g5] [f5,g6] [db5,g5] [f5,g6] g5 [db5,g6] f5 [db5,g5] [f5,g6] [db5,g5] [f5,g6] [bb4,g5] [eb5,g6] g5", // G5 Fsus2 Dbdim Fsus2 Dbdim Fsus2 Dbdim Fsus2 …
  AL: "[[bb4,g6] [eb5,g5] [bb4,g6] [eb5,g5] bb4 [eb5,g6] [bb4,g5] [eb5,g6] [bb4,g5] g6 [eb5,g5] [bb4,g6] [eb5,g5] [bb4,g6] [eb5,g5] [bb4,g6] eb5 [bb4,g5] [eb5,g6] [bb4,g5] g6 [eb5,g5] [bb4,g6] eb5 eb6 ab5 eb6 ab5 eb6 ~ ab5 eb6 ab5 eb6 ab5 eb6 ab5 eb6 ab5 eb6 ~ ab5 eb6 ab5 eb6 ab5 eb6 ab5 eb6 ab5 ~ b5 ab5 b5 ab5 b5 ab5 b5 ab5 ~ b5 ab5 b5 ab5, ~@24 c5@6 ~ b4@6 c5@6 ~ d5@6 ~ eb5@13]/2", // Eb
  AM: "b5 ab5 b5 ab5 b5 ab5 ~ b5 ab5 b5 ab5 b5 ab5 db6 gb5 ~ db6 gb5 db6 gb5 db6 gb5 db6 gb5 db6 ~ gb5 db6 gb5 db6 gb5 db6, d5@13 db5@6 ~ c5@6 ~ db5@5",
  AN: "[gb5 db6 gb5 db6 ~ gb5 db6 gb5 c6 ab5 c6 ab5 c6 ~ ab5 c6 ab5 c6 ab5 c6 ab5 c6 ab5 c6 ~ ab5 c6 ab5 c6 ab5 c6 ab5 c6 ab5 ~ eb6 c6 eb6 c6 eb6 c6 eb6 c6 ~ eb6 c6 eb6 c6 eb6 c6 eb6 c6 eb6 c6 ~ eb6 c6 eb6 c6 eb6 c6 db6 ab5 ~ db6 ab5 db6 ab5 db6 ab5 db6 ab5 db6 ~ ab5 db6 ab5 db6 ab5 db6 ab5 db6 ab5 db6 ~ ab5 db6 ab5 [c5,g5] [gb5,d6,g6] [c5,g5] [gb5,d6,g6] [c5,g5] [d6,g6] gb5 [c5,g5], ~ eb5@6 ~ e5@8 ~ g5@8 ~ f5@8 ~ ab5@13 f5@13 eb5@13 ~ bb4@13 ~@8]/3", // C5 Gmaj7 C5 Gmaj7 C5 G5 C5
  AO: "[gb5,d6,g6] [c5,g5] [gb5,d6,g6] [c5,g5] [gb5,d6,g6] [c5,g5] [gb5,d6,g6] [c5,g5] [d6,g6] [gb5,g5] c5 [gb5,d6,g6] [c5,g5] [gb5,d6,g6] [c5,g5] [gb5,d6,g6] [c5,g5] [gb5,d6,g6] g5 [b4,d6,g6] [f5,g5] b4 [f5,d6,g6] [b4,g5] [f5,d6,g6] [b4,g5] [f5,d6,g6] g5 [b4,d6,g6] [f5,g5] [b4,d6,g6] [f5,g5]", // Gmaj7 C5 Gmaj7 C5 Gmaj7 C5 Gmaj7 C5 …
  AP: "[b4,d6,g6] f5 [b4,g5] [f5,d6,g6] [b4,g5] [f5,d6,g6] g5 [b4,d6,g6] [f5,g5] [b4,d6,g6] [f5,g5] [b4,d6,g6] f5 [ab4,f5] [e5,f6] ~ [ab4,f5] [e5,f6] [ab4,f5] [e5,f6] [ab4,f5] [e5,f6] [ab4,f5] [e5,f6] [ab4,f5] ~ [e5,f6] [ab4,f5] [e5,f6] [ab4,f5] [e5,f6] [ab4,f5]", // G Em G7 Em G7 G Fsus2 G …
  AQ: "[e5,f6] [ab4,f5] [e5,f6] [ab4,f5] ~ [e5,f6] [ab4,f5] [e5,f6] [ab4,eb5] [db5,eb6] [ab4,eb5] [db5,eb6] [ab4,eb5] ~ [db5,eb6] [ab4,eb5] [db5,eb6] [ab4,eb5] [db5,eb6] [ab4,eb5] [db5,eb6] [ab4,eb5] [db5,eb6] [ab4,eb5] ~ [db5,eb6] [ab4,eb5] [db5,eb6] [ab4,eb5] [db5,eb6] [ab4,eb5] [db5,eb6]", // Fmaj7 Db Fmaj7 Db Fmaj7 Db Fmaj7 Ab5 …
  AR: "[ab4,eb5] [db5,eb6] ~ [c5,g5] [gb5,g6] [c5,g5] [gb5,g6] [c5,g5] [gb5,g6] [c5,g5] [gb5,g6] g5 c5 [gb5,g6] [c5,g5] [gb5,g6] [c5,g5] [gb5,g6] [c5,g5] [gb5,g6] [c5,g5] [gb5,g6] g5 [c5,g6] gb5 [c5,g5] [gb5,g6] [c5,g5] [gb5,g6] [d5,g5] [f5,g6] g5", // Ab5 Dbsus2 C5 Gmaj7 C5 Gmaj7 C5 Gmaj7 …
  AS: "[d5,g6] [f5,g5] [d5,g6] [f5,g5] d5 [f5,g6] [d5,g5] [f5,g6] [d5,g5] g6 [f5,g5] [d5,g6] [f5,g5] [d5,g6] [f5,g5] [d5,g6] f5 [d5,g5] [f5,g6] [d5,g5] g6 [f5,g5] [d5,g6] f5 [db5,g5] [f5,g6] [db5,g5] [f5,g6] [db5,g5] g6 f5 [db5,g5]", // G5 Fsus2 G5 Fsus2 G5 Fsus2 G5 Fsus2 …
  AT: "[f5,g6] [db5,g5] [f5,g6] [db5,g5] [f5,g6] [db5,g5] [f5,g6] [db5,g5] g6 [f5,g5] db5 [f5,g6] [db5,g5] [f5,g6] [db5,g5] [f5,g6] [db5,g5] [f5,g6] g5 [bb4,g6] [eb5,g5] bb4 [eb5,g6] [bb4,g5] [eb5,g6] [bb4,g5] [eb5,g6] g5 [bb4,g6] [eb5,g5] [bb4,g6] [eb5,g5]", // Fsus2 Dbdim Fsus2 Dbdim Fsus2 Dbdim Fsus2 Dbdim …
  AU: "[bb4,g6] eb5 [bb4,g5] [eb5,g6] [bb4,g5] [eb5,g6] g5 [bb4,g6] [eb5,g5] [bb4,g6] [eb5,g5] [bb4,g6] eb5 eb6 ab5 ~ eb6 ab5 eb6 ab5 eb6 ab5 eb6 ab5 eb6 ~ ab5 eb6 ab5 eb6 ab5 eb6, ~@13 c5@6 ~ b4@6 ~ c5@5", // Eb
  AV: "[ab5 eb6 ab5 eb6 ~ ab5 eb6 ab5 b5 ab5 b5 ab5 b5 ~ ab5 b5 ab5 b5 ab5 b5 ab5 b5 ab5 b5 ~ ab5 b5 ab5 b5 ab5 b5 ab5 b5 ab5 ~ db6 gb5 db6 gb5 db6 gb5 db6 gb5 ~ db6 gb5 db6 gb5 db6 gb5 db6 gb5 db6 gb5 ~ db6 gb5 db6 gb5 db6 gb5 c6 ab5 ~ c6 ab5 c6 ab5 c6 ab5 c6 ab5 c6 ~ ab5 c6 ab5 c6 ab5 c6 ab5 c6 ab5 c6 ~ ab5 c6 ab5 eb6 c6 eb6 c6 eb6 ~ c6 eb6 c6 eb6 c6 eb6 c6 eb6 c6 eb6 ~ c6 eb6 c6 eb6 c6 eb6 c6 eb6 c6 ~ db6 ab5 db6 ab5 db6 ab5 db6 ab5 ~ db6 ab5 db6 ab5, ~ d5@6 ~ eb5@13 d5@13 ~ db5@6 c5@6 ~ db5@6 ~ eb5@6 e5@8 ~ g5@8 ~ f5@8 ~ ab5@13 f5@13 ~ eb5@13]/4",
  AW: "[db6 ab5 db6 ab5 db6 ab5 ~ db6 ab5 db6 ab5 db6 ab5 g5 d5 ~ g5 d5 g5 d5 g5 d5 g5 d5 g5 d5 g5 ~ d5 g5 d5 g5 d5 g5 d5 g5 d5 g5 d5 ~ g5 d5 g5 d5 g5 d5 g5 d5 g5 d5 ~ g5 d5 g5 d5 g5 d5 g5 d5 g5 d5 g5 ~ d5 g5 d5 ~ b5 gb5 b5 gb5 b5 gb5 b5 gb5 ~ b5 gb5 b5 gb5 b5 gb5 b5 gb5 b5 gb5 ~ b5 gb5 b5 gb5 b5 gb5 a5 f5 ~ a5 f5 a5 f5 a5 f5 a5 f5 a5 ~ f5 a5 f5 a5 f5 a5 f5 a5 f5 a5 ~ f5 a5 f5 ab5 eb5 ab5 eb5 ab5 eb5 ~ ab5 eb5 ab5 eb5 ab5 eb5 ab5 eb5 ab5 eb5 ab5 ~ eb5 ab5 eb5 ab5 eb5 ab5 eb5 ab5 eb5 ab5 ~ eb5 ab5 eb5 ab5 eb5 ab5 eb5 ab5 eb5 ab5 eb5 ~ ab5 eb5 ab5 eb5 ab5 eb5 ab5 eb5 ab5 eb5 ~ eb6 ab5 ~ eb6 ab5 eb6 ab5 eb6 ab5 eb6 ab5 eb6 ab5 eb6 ~ ab5 eb6 ab5 eb6 ab5 eb6 ab5 eb6 ab5 eb6 ab5 ~ eb6 ab5 eb6 ab5 eb6 ab5 eb6 ab5 eb6 ab5 ~ eb6 ab5 eb6 ab5 eb6 ab5 eb6 ab5 eb6 ab5 eb6 ~ ab5, bb4@13 c6@51 ~@3 d6@25 ~ c6@25 ~@2 db6@51 ~@53, ~@13 a4@13 ~ bb4@13 a4@13 bb4@13 ~ b4@6 bb4@6 ~ b4@6 ~ db5@6 d5@6 ~ c5@6 ~ d5@6 eb5@6 ~ e5@25 ~@79, ~@133 b4@13 ~ bb4@13 b4@13 [c5,f5]@51]/7", // F5
  AX: "[eb6 ab5 ~ g6 d6 g6 d6 g6 d6 g6 d6 g6 ~ d6 g6 d6 g6 d6 g6 d6 g6 d6 g6 d6 ~ g6 d6 g6 d6 g6 d6 g6 d6 g6 d6 g6 ~ d6 g6 d6 g6 d6 g6 d6 g6 d6 g6 d6 ~ g6 d6 g6 d6 g6 d6 ~@9, ~@3 [f5,bb5]@51 ~@10]/2", // Bb5
  AY: "~ gb6@4 f6@8 ~ g6@4 ~ eb6@8 ~ c6@4, ~@5 [a5,d6]@13 ~ [c5,g5]@13", // D5 C5
  AZ: "[bb5@8 ~ c6@4 ~@9 f6 gb6@3 ~ c7@8 ~ gb6@4 f6@4 eb6@4 ~ c6@4 [eb5,g5,bb5]@13 ~ b5@4 bb5@4 ~ c6@4 g5 ab5@3 f5@8 ~@4, [eb5,g5]@13 ~@14 [f5,a5,d6]@13 [c5,g5]@13 ~@14 [db5,gb5]@13 [b4,e5]@13 ~@3]/3", // Eb Dm C5 Gb5 E5
  BA: "[~@2 bb5@4 c6@4 ~ g5 ab5@3 f5@4 ~ ab5@4 a4@6 ~ ab4@6 bb4@6 ~ g4@6 ~ b4@6 bb4@6 ~ c5@6 ~ ab4@6 ~@14 [f5,ab5,db6,g6]@8 ~ [eb6,gb6]@4 [eb6,gb6] g5 [eb6,gb6] g5 [eb6,gb6] ~ g5 [eb6,gb6] g5 [eb6,gb6] g5 [eb6,gb6] g5 [eb6,gb6] g5 [eb6,gb6] ~ g5 [eb6,gb6] g5 [eb6,gb6] g5 [eb6,gb6] g5 [eb6,gb6] g5 ~@30, ~@2 [db5,gb5]@9 [b4,e5]@13 [db5,eb5,f5]@25 ~@2 [eb5,g5]@25 ~@24 eb5@30 ~@30]/5", // Db Ebm Gb5 E5 Db Eb
  BB: "~@21 [gb5,gb6]@2 ~ [gb5,gb6]@2 [g5,g6]@2 [eb5,eb6]@2 [e5,e6]@2, ~@23 [f5,f6]@2 ~@7", // Gb G Eb E F
  BC: "[[c5,c6]@2 ~ [g4,g5]@2 a5@2 f6@2 a5@2 [b4,f5,g5,eb6]@7 [gb5,gb6]@2 [f5,f6]@2 [gb5,gb6]@2 [g5,g6]@2 [eb5,eb6]@2 ~ [c5,c6]@2 [bb4,bb5]@2 ~@4 [ab4,ab5]@2 [a4,a5]@2 ~ [gb4,gb5]@2 [g4,g5]@2 [e5,e6]@2 ~@2 eb6@2 ~ a6@2 b5@2 c6@2 e6@2 gb5@2 g5@2 ~ e5@2 f5@2 c6@2 f5@2 gb5@2 c6@2 ~ [b4,g5]@2 [g4,eb5]@2 [b4,eb5,f5]@5 ~ [b4,g5]@2 eb5 [b4,eb5,f5]@2 [b4,g5]@2, ~@2 [bb4,bb5]@2 ~ a4@5 ~@18 [e5,e6]@2 ~@11 [f5,f6]@2 ~@9 e6@2 ~@11 c6@2 ~@11 e6@2 ~@11 g4@2 ~@3]/3", // C G Baug Gb F Gb G Eb …
  BD: "[g4,eb5]@2 [b4,eb5,f5]@4 ~ b5@3 ~@3 [f5,f6]@2 [gb5,gb6]@2 [g5,g6]@2 ~ [e5,e6]@2 [c5,c6]@2 [bb4,bb5]@2 [g4,g5]@2 a5@2 f6@2, ~@6 [b4,db5,eb5,f5]@4 ~@9 [eb5,eb6]@2 ~@7 a4@4", // Cm Fm7b5 F Gb G E C Bb …
  BE: "[~ [b4,f5,g5,eb6]@7 ~ [gb5,gb6]@2 [f5,f6]@2 ~ [g5,g6]@2 [eb5,eb6]@2 [e5,e6]@2 [c5,c6]@2 [bb4,bb5]@2 ~@3 [ab4,ab5]@2 [a4,a5]@2 [f5,f6]@2 [gb4,gb5]@2 [g4,g5]@2 [e5,e6]@2 ~ eb6@2 e6@2 a6@2 b5@2 c6@2 ~ gb5@2 g5@2 c6@2 e5@2 f5@2 c6@2 ~ gb5@2 c6@2 e6@2 [b4,g5]@2 [g4,eb5]@2 [b4,eb5,f5]@5 [b4,g5]@2 [g4,eb5]@2 [b4,eb5,f5]@2 [b4,g5]@2 eb5 [b4,eb5,f5]@4 ~ b5@3, a5@2 ~@11 [gb5,gb6]@2 ~@35 e6@2 ~@11 f5@2 ~@22 g4@2 ~@3 [b4,db5,eb5,f5]@4]/3", // Baug Gb F G Eb E C Bb …
  BF: "~@5 gb5@2 g5@2 eb6@2 e6@2 c6@2 bb4@2 ~ a4@2 f5@2 a5@2 eb6@5 ~@3, ~@4 f5@2 ~@11 g4@2 ~@13",
  BG: "[~ a5@2 bb5@2 b5@2 g6@2 ~ e6@2 d5@2 b4@2 db5@2 a5@2 db6@2 g6@2 ~@7 b6@2 g6@2 ~ db6@4 eb5@2 d5@2 db5@2 ~ c6@2 a5@2 gb5@4 b4@2 bb4@2 ~ [g4,g5]@4, ~@9 ab6@2 ~@20 e5@9 ~@6 c5@9 ~@2 gb5@4 ~@3, ~@35 e6@2 ~@5 db6@4 e6@2 ~@11 a4@2 ~@3]/2", // G
  BH: "~@13 [c6,e6,g6] [b5,eb6,gb6]@2", // C B
  BI: "[~ [b5,eb6,gb6]@4 [c6,e6,g6]@4 [gb5,c6,e6]@2 [f5,b5,eb6]@3 [g5,c6,e6]@2 [eb5,b5,eb6]@4 [c5,c6,e6]@4 [e6,g6]@2 ~ [e6,g6,a6]@2 [e6,g6]@2 [eb6,gb6]@2 [e6,g6,a6]@2 [e6,g6]@4 ~ [b5,eb6]@2 [g5,a5,c6]@2 [c6,e6]@2 [b5,eb6]@2 [g5,a5,c6]@2 [c6,e6]@4 ~@10, [c6,e6,g6]@2 ~@24 [eb6,gb6]@2 ~@11 [c6,e6]@2 ~@23]/2", // B C Gbm7b5 Fm7b5 C Abm C Em …
  BJ: "[~@4 gb5@2 f5@4 g5@2 eb5@3 ~@4 a6@2 ab6@4 ~ f6@4 db6@18 ~@2 [db5,gb5]@4 [d5,g5]@2 [b4,eb5]@4 [gb5,b5]@2 [f5,bb5]@3 [gb5,b5]@2 [eb5,g5]@4 [d5,d6]@2 [bb4,bb5]@3 [d5,d6]@2 [eb5,eb6]@2 ~ [b4,b5]@2 [eb5,eb6]@2 ~ [gb5,gb6]@2 [d5,d6]@2 ~ [gb5,gb6]@2 [a5,a6]@2 ~, ~@15 b4@32 ~@2 [d5,g5]@2 ~@45, ~@25 a6@2 ~@69]/3", // Gb5 G5 B B5 Bb5 B5 Eb D …
  BK: "[f5,f6]@2 [a5,a6]@2 [c6,c7]@2 ~@6 [f5,f6,a6]@4 [f5,a5,c6,f6,a6] [f5,f6,a6] [a5,c6] [f5,f6,a6] [a5,c6] [f5,f6,a6] [a5,c6] [f5,f6,a6] [a5,c6] [f5,f6,a6] [a5,c6] [e5,e6,a6] [g5,bb5] [e5,g5,bb5,e6,a6] [e5,e6,a6] [g5,bb5]", // F A C F Am F Am F …
  BL: "[[e5,e6,a6] [g5,bb5] [e5,e6,a6] [g5,bb5] [e5,e6,a6] [g5,bb5] [eb5,eb6,a6] [g5,b5] [eb5,eb6,a6] [eb5,g5,b5,eb6,a6] [g5,b5] [eb5,eb6,a6] [g5,b5] [eb5,eb6,a6] [g5,b5] [eb5,eb6,a6] [g5,b5] [d6,a6] a5 [d6,a6] a5 [a5,d6,a6] [d6,a6] a5 [d6,a6] a5 [d6,a6] a5 [d6,a6] a5 [d6,a6] a5 [d6,a6] [a5,d6,a6] a5 [a5,d6,a6] ~ [d6,a6] a5 [db6,g6] g5 [db6,g6] g5 [db6,g6] g5 [db6,g6] [g5,db6,g6] g5 [db6,g6] g5 [db6,g6] g5 [db6,g6] g5 [db6,g6] g5 [db6,g6] g5 [g5,db6,g6] [db6,g6] g5 ~@3, ~@17 [d5,gb5]@7 [e5,g5]@4 [f5,ab5]@7 gb5@4 [db5,f5]@21 ~@4, ~@18 a5 ~@13]/2", // A5 Gm A5 Gm A5 Gm Ebdim G …
  BM: "[~@5 [gb5,gb6] [g5,g6]@2 [c6,c7]@7 ~ [gb5,gb6]@4 [f5,f6]@7 [eb5,eb6]@4 [c5,c6]@7 [bb4,bb5]@4 [c5,c6]@2 ~@9 [f5,ab5,db6,g6]@7 [c5,c6,g6]@4]/2", // Gb G C Gb F Eb C Bb …
  BN: "[c5,c6,g6] [gb5,g5] [c5,c6,g6] [gb5,g5] [c5,c6,g6] [gb5,g5] [c5,gb5,g5,c6,g6] [c5,c6,g6] [gb5,g5] [c5,c6,g6] [gb5,g5] [c5,c6,g6] [gb5,g5] [c5,c6,g6] [gb5,g5] [c5,c6,g6] [gb5,g5] [c5,c6,g6] [c5,gb5,g5,c6,g6] [gb5,g5] [c5,c6,g6] [gb5,g5] ~@10", // C5 Gmaj7 C5 Gmaj7 C5 Gmaj7 C C5 …
})).s("gm_piano").gain(0.2)

// chords · piano
const piano_2 = note(`<
  A B@3 C D@3 E@3 F@3 G H C D@3 E@3 F@3 G H I J K@2 L@2 M N@3 O H P Q R S T@2 U V@6 W X@4 Y@5 Z@5 AA@5 AB@5 AC@8 AD@4 AE
  AF@3 AG AH AI@3 AJ@3 AK@2 AL AM@2 AN AO@2 AP AQ@2 AR@8 AS
>`.pickRestart({
  A: "~@3 [e3,bb3,eb4], ~@16 c2@15 ~", // Eb
  B: "[~@8 [e3,bb3,eb4]@8 ~@13 g2@10 ~@9 [e3,bb3,eb4]@8 ~@8 [e3,bb3,eb4]@8 ~@13 g2@10 ~, eb2@15 ~ f2@13 ~@11 c2@15 ~ eb2@15 ~ f2@13 ~@11, ~@3 [eb3,a3,d4] ~@6 [eb3,a3,d4] ~]/3", // Eb D
  C: "~ [e3,bb3,eb4] ~ [e3,bb3,eb4], c2@15 ~ eb2@15 ~", // Eb
  D: "[~@13 g2@10 ~@9 [e3,bb3,eb4]@8 ~@8 [e3,bb3,eb4]@8 ~@13 g2@10 ~@9 [a3,eb4,ab4]@8, f2@13 ~@11 c2@15 ~ eb2@15 ~ f2@13 ~@11 f2@15 ~, ~ [eb3,a3,d4] ~@6 [eb3,a3,d4] ~@3]/3", // Eb Ab D
  E: "[~@8 [a3,eb4,ab4]@8 ~@13 c3@10 ~@9 [e3,bb3,eb4]@8 ~@8 [e3,bb3,eb4]@8 [f2,eb3,a3,d4]@5 ~@8 [bb2,ab3,d4,g4]@10 ~, ab2@15 ~ bb2@13 ~@11 c2@15 ~ eb2@15 ~@25, ~@3 [ab3,d4,g4] ~@8]/3", // Ab Eb Dm Gm G
  F: "[[a2,g3,db4,f4]@13 [d3,gb3,c4,f4]@10 ~ [b2,a3,eb4,g4]@13 [e3,ab3,d4,g4]@10 ~ [a2,g3,db4,f4]@13 [d3,gb3,c4,f4]@10 ~ [g2,f3,b3,eb4,f4]@15 ~@9]/3", // Aaug D7 Baug E7 Aaug D7 Gaug
  G: "~@5 c2@3 [e2,c4]@8 [f2,d4]@8 [gb2,eb4]@8", H: "[g2,e4]@8 [db2,f3,b3,e4]@5 [c2,e3,bb3,eb4]@18 ~",
  I: "~@5 [bb3,d4,e4,a4]@3 d2@8 ~@5 [bb3,d4,e4,a4]@3 e2@8, c2 ~ eb2 ~", // Bbmaj7
  J: "~@13 g2@10 ~ c2@5 [c3,bb3,d4,e4,a4]@3, f2@13 ~@19, ~ [a3,d4,eb4,g4] ~@2", // Am Dsus4
  K: "[d2@8 ~@5 [bb3,d4,e4,a4]@3 e2@8 ~@13 g2@10 ~ [a3,eb4,ab4]@5 [a3,eb4,ab4]@3 g2@8, ~@8 eb2@8 ~@8 f2@13 ~@11 f2@8 ~@8, ~@4 [a3,d4,eb4,g4] ~@3]/2", // Bbmaj7 Ab Dsus4
  L: "[~@5 [a3,eb4,ab4]@3 a2@8 ~@13 c3@10 ~@6 [bb3,e4,g4]@3 d2@8 ~@5 [bb3,e4,ab4]@3, ab2@8 ~@8 bb2@13 ~@11 c2@8 ~@8 eb2@8, ~@3 [ab3,c4,d4,g4] ~@4]/2", // Ab Edim Bbm7b5 Abmaj7
  M: "e2@8 [f2,a3,d4,eb4,g4]@13 [bb1,ab3,c4,d4,g4]@10 ~", // Dm Gm
  N: "[a1@5 db2@3 e2@3 eb2@2 d2@8 a2@3 b1@5 eb2@3 gb2@3 f2@2 e2@8 bb1@3 a1@5 db2@3 e2@3 eb2@2 d2@8 ab1@3 [g1,f3,b3,eb4,f4]@5 [f2,a3,eb4]@5 ~ [gb2,bb3,e4]@5 [g2,b3,f4]@8, [g3,db4,f4]@13 [gb3,c4,f4]@10 ~ [a3,eb4,g4]@13 [ab3,d4,g4]@10 ~ [g3,db4,f4]@13 [gb3,c4,f4]@10 ~@25]/3", // Gaug F7 Gb7 G7 Gm7b5 F Am7b5 G …
  O: "c2@5 eb2@3 e2@8 [f2,d4]@8 [gb2,eb4]@8, ~@5 c4@10 ~@17", // Dm Ebm
  P: "~@5 g4@3 f4@3 gb4@2 g4@3 eb4@3 e4@2 c4@3 bb3@3 b3@2 c4@3, g2@23 ~@9, c2 b1 bb1 a1",
  Q: "gb3@3 g3@2 [d2,c4]@3 eb3@3 e3@2 [db2,g3]@3 ~@5 [d2,d3,gb3,c4]@10 ~, ab1@5 ~@3 g1@5 ~@19", // D7 Dbdim D7
  R: "[db2,db3] g2 gb2 c2, [f3,b3]@15 ~ [c3,bb3,e4]@15 ~", // Db Fdim C7
  S: "b1@8 f2@8 [c2,bb2,d4,ab4]@3 ~@10 [bb2,ab3,d4]@3, [b2,eb4,a4]@15 ~@17", // Bb7 B7
  T: "[[eb3,g3,db4]@5 [d3,gb3,c4]@10 ~ [g2,f3,b3]@13 [c2,e3,bb3,c4]@10 ~@6 c5@3 bb4@3 b4@2 c5@3 ab4@3 a4@2 f4@3, ~@5 f2 [eb3,a3] ab2]/2", // Eb7 D7 G7 C7 Ebdim
  U: "eb4@3 e4@2 f4@3 ab4@5 f4@3 [b2,a3,db4,eb4]@5 [bb2,ab3,c4,d4,f4]@10 ~, [eb3,a3] bb2 ~@2", // B7 Bb7 Ebdim
  V: "[[e2,d3,gb3,ab3,c4]@5 [eb2,db3,f3,g3,bb3]@10 ~ a4@5 gb4@3 [c3,bb3,e4]@5 ~@3 d4@3 eb4@2 b3@3 a3@5 [ab3,b3]@10 ~ [c3,bb3,e4]@15 ~@6 [b2,a3,eb4]@10 ~ [bb2,ab3,d4]@15 ~ [a2,g3,db4]@15 ~@6 [d2,gb3,c4]@5 ~ [eb2,g3,db4]@5 [e2,ab3,d4]@5 [f2,a3,eb4]@5 ~ [gb2,bb3,e4]@5 [g2,b3,f4]@15 ~ [g1,f3,b3,e4]@15 ~@6 [gb2,gb4]@3, ~@16 b2@8 ~@5 gb4@25 ~@138, ~@29 [b2,a3]@10 ~@153]/6", // Eaug Eb7 C7 Abm C7 B7 Bb7 A7 …
  W: "[f2,f4]@5 [g2,g4]@3 [eb2,eb4]@3 [e2,e4]@2 [c2,c4]@3 [bb1,bb3]@5 [g1,g3]@3 [c2,c4]@2 ~@6", // F G Eb E C Bb G C
  X: "[~@5 [c1,c2]@3 ~@16 gb2 [c2,g2]@12 [c3,eb3,a3,d4]@8 ~ d3@17 ~ gb2 ~@12 c2@13 ~ [c3,eb3,a3,d4]@8 ~ d3@13 db3@4 g2@11, ~@23 [f3,b3,eb4]@15 ~@12 [f3,b3,eb4]@14, ~@65 g2@24 ~@39]/4", // C C5 Adim Fm7b5
  Y: "[~@12 gb4@4 f4@8 ~ g4@4 eb4@8 ~ c4@17 ~ [db4,f4]@8 ~ [db4,g4]@8 ~ [db4,f4]@8 ~ d3@13 g2@13 ~@9 gb4@4 ~ f4@8 ~ g4@4 eb4@8 ~ c4@8 ~ bb4@6, ~@3 [c3,eb3,a3]@25 ~ [d3,f3,b3]@25 ~@2 [eb3,a3]@25 ~@2 [ab3,db4,e4]@25 ~ [c3,eb3,a3]@25 ~@2 [db3,f3,b3]@24, ~@12 d4@17 ~@89 d4@17 ~@25]/5", // Db Dbdim Db Adim Bdim Ebdim Dbm Adim …
  Z: "[~@3 db4@17 c4@4 ~ b3@4 [g2,f3,bb3,eb4]@25 ~@2 [c4,g4]@4 [ab3,c4]@3 ~@2 [c4,g4]@4 [ab3,c4]@4 ~@5 ab3@4 ~ [ab3,d4]@4 [ab3,d4]@4 ~ [ab3,d4]@4 [ab3,d4]@4 [ab3,d4]@4 ~ [ab3,d4]@4 [bb3,f4]@4 ~ [f4,bb4]@4 [bb3,f4]@4 ~ [e4,a4]@4 [a3,e4]@4 ~ [e4,a4]@4 [eb4,ab4]@4 [a3,eb4]@4 ~ [eb4,ab4]@4 [a3,eb4]@4 ~ [eb4,ab4]@4 [a3,eb4]@2, ~@3 [d3,ab3,f4]@25 ~@28 f2@25 ~@2 [bb1,bb2]@25 ~ gb2@25 ~@2 [f2,eb3]@24, ~@56 eb3@6 ~ d3@6 eb3@5 [c4,g4]@4 ~@5 gb4@13 f4@13 ~@51, ~@76 f3@6 ~@27 f3@13 ~ e3@13 ~@24]/5", // Eb C5 Ab C5 Ab Abdim Bb5 A5 …
  AA: "[~@3 [c4,f4]@4 [gb3,eb4]@4 ~ [c4,f4]@4 [gb3,eb4]@4 [c4,f4]@4 ~ [gb3,eb4]@4 [b3,f4]@4 ~ [g3,eb4]@4 [b3,f4]@4 ~ [g3,eb4]@4 [b3,f4]@4 ~ [g3,eb4]@4 ~@9 gb4@4 f4@8 ~ g4@4 ~ eb4@8 ~ c4@17 [db4,f4]@8 ~ [db4,g4]@8 ~ [db4,f4]@8 ~ d3@13 g2@11, ~@3 [d2,d3]@25 ~ [db2,db3]@25 ~@2 [c3,eb3,a3]@25 ~@2 [d3,f3,b3]@25 ~ [eb3,a3]@25 ~@2 [ab3,db4,e4]@24, ~@65 d4@17 ~@78]/5", // F5 Ebm F5 Ebm F5 Ebm Bdim Cm …
  AB: "[~@12 gb4@4 f4@8 ~ g4@4 eb4@8 ~ c4@8 ~ bb4@8 ~ db4@17 ~ c4@4 b3@4 ~ [g2,f3,bb3,eb4]@25 ~ [c4,g4]@4 ~@5 [c4,g4]@4 ~ [ab3,c4]@4 ~@5 ab3@4 [ab3,d4]@4 [ab3,d4]@4 ~ [ab3,d4]@4 [ab3,d4]@4 ~ [ab3,d4]@4 [ab3,d4]@2, ~@3 [c3,eb3,a3]@25 ~ [db3,f3,b3]@25 ~@2 [d3,ab3,f4]@25 ~@28 f2@25 ~@2 [bb1,bb2]@24, ~@12 d4@17 ~@80 eb3@5 [ab3,c4]@4 ~@9 [c4,g4]@4 ~@5 gb4@13 f4@11, ~@116 d3@6 ~ eb3@6 f3@6 ~@25]/5", // Eb C5 Ab Abdim Adim Db7 Ddim Bb …
  AC: "[~@3 [bb3,f4]@4 [f4,bb4]@4 ~ [bb3,f4]@4 [e4,a4]@4 [a3,e4]@4 ~ [e4,a4]@4 [eb4,ab4]@4 ~ [a3,eb4]@4 [eb4,ab4]@4 ~ [a3,eb4]@4 [eb4,ab4]@4 ~ [a3,eb4]@4 [c4,f4]@4 [gb3,eb4]@4 ~ [c4,f4]@4 [gb3,eb4]@4 ~ [c4,f4]@4 [gb3,eb4]@4 ~ [b3,f4]@4 [g3,eb4]@4 ~ [b3,f4]@4 [g3,eb4]@4 [b3,f4]@4 ~ [g3,eb4]@4 [c2,c3,eb3,a3,c4]@13 ~ gb3 [f3,c4]@12 [eb2,eb3,g3,c4]@13 [f2,f3,b3,eb4]@13 ~ [d4,gb4]@4 b3@4 ~ [d4,gb4]@4 b3@4 [d4,gb4]@4 ~ b3@4 [c4,f4]@4 ~ a3@4 [c4,f4]@4 ~ a3@4 [c4,f4]@4 ~ a3@4 [db2,db3,e3,bb3,db4]@13 g3 [gb3,db4]@12 ~ [e2,e3,ab3,db4]@13, ~@3 gb2@25 ~ [f2,eb3]@25 ~@2 [d2,d3]@25 ~@2 [db2,db3]@25 ~@15 [d2,d3]@13 ~@27 [e2,e3]@25 ~ [eb2,eb3]@25 ~@15 [eb2,eb3]@13 ~@14, ~@3 f3@13 e3@13 ~@227]/8", // Bb5 A5 Ab5 Adim Ab5 Adim Ab5 Adim …
  AD: "[[gb2,gb3]@13 ~@7 f4@6 ~ ab4@6 g4@6 ~ f4 gb4@5 ~ f4@6 eb4@6 ~ c4@6 ~ f4 b3 f4 b3 f4 b3 f4 b3 f4 ~ b3 f4 b3 f4 b3 f4 b3 f4 b3 f4 b3 ~ f4 b3 f4 b3 f4 b3 f4 b3 f4 b3 f4 ~ b3 f4 b3 f4 b3 f4 b3 f4 b3 f4 b3 ~ f4 b3 f4 b3 f4 b3 ~ c2 c3 c2 c3 c2 c3 ~ c2, c4@19 ~@45, e4@19 ~@109, ~@13 [f2,eb3,a3]@25 ~@2 [ab2,eb3,gb3,bb3]@25 ~@2 [g2,db3,f3]@51 ~@10]/4", // Gb F7 Ebm Gm7b5
  AE: "c3 c2 c3 c2 c3 c2 c3 c2 c3 c2 ~ c3 c2 c3 c2 c3 c2 c3 c2 c3 c2 ~ c3 c2 c3 c2 c3 c2 c3 c2 c3 c2, ~@5 [g3,bb3,eb4]@13 ~ [a3,c4,f4]@13", // Eb F
  AF: "[c3 ~ c2 c3 c2 c3 c2 c3 c2 c3 c2 c3 ~ c2 c3 ~ c2 c3 c2 c3 c2 c3 c2 c3 c2 c3 c2 ~ c3 c2 c3 c2 c3 c2 c3 c2 c3 c2 c3 ~ c2 c3 c2 c3 c2 c3 c2 c3 c2 c3 ~ c2 c3 c2 c3 c2 c3 c2 c3 c2 c3 c2 ~ c3 c2 c3 ~ c2 c3 c2 c3 c2 c3 c2 c3 c2 ~ c3 c2 c3 c2 c3 c2 c3 c2 c3 c2 c3 ~ c2 c3 c2 c3 c2 c3 c2, [bb3,e4,g4]@13 ~@14 [e3,bb3,eb4]@13 [a3,d4,f4]@13 [bb3,e4,g4]@13 ~ [a3,eb4,ab4]@13 [ab3,d4,g4]@13 ~@3]/3", // Edim Eb Dm Edim Ab G
  AG: "c3 c2 c3 c2 ~ c3 c2 c3 c2 c3 c2 c3 c2 c3 c2 c3 ~ c2 c3 c2 c3 c2 c3 ~ c2 c3 c2 c3 c2 c3 ~ c2, ~@2 [a3,eb4,ab4]@9 [ab3,d4,g4]@13 [gb3,c4,f4]@4 [gb3,c4,f4]@4", // Ab G F
  AH: "c3 c2 c3 c2 c3 c2 c3 c2 c3 c2 ~ c3 c2 c3 c2 c3 c2 c3 c2 c3 c2 ~ c3 c2 c3 c2 c3 c2 c3 c2 c3 c2, ~ [gb3,c4,f4]@4 [gb3,c4,f4]@4 ~ [gb3,c4,f4]@4 [gb3,c4,f4]@4 ~ [f3,b3,e4]@4 [f3,b3,e4]@4 ~ [f3,b3,e4]@4", // F E
  AI: "[c3 ~ c2 c3 c2 c3 c2 c3 c2 c3 c2 c3 ~ gb2 ~@13 [d3,b3,f4]@8 ~ [c3,bb3,e4]@30 ~@21 c3@2 ~@5 c4@2, [f3,b3,e4]@4 [f3,b3,e4]@4 ~ [f3,b3,e4]@4 ~ [c2,g2]@52 ~ c2@3 gb2@4 f2@4 g2@3 eb2@4 c2@4 db2@4 ab2@3, ~@69 c3@3 gb3@4 f3@4 g3@3 eb3@4 ~@4 f3@4 ~]/3", // Bdim C7 E C5
  AJ: "[~@6 db3@2 [b3,eb4]@2 ~@13 c2@3 [gb3,c4,e4]@4 db2@4 [g3,db4,e4]@3 d2@4 [a3,d4,e4]@4 db2@3 [f3,b3,e4]@4 c2@4 [gb3,c4,e4]@4 db2@3 [g3,db4,e4]@4 ~@4 d2@3 [gb2,e3,bb3,eb4]@4 ~@4 c3@3 [e3,c4,e4]@4 gb2@4 [bb2,d4,e4]@3, ~ g2@2 ~@45, ~ [f3,ab3] ~@22]/3", // B Gbm7b5 Dbdim Asus4 E Gbm7b5 Dbdim Ebm …
  AK: "[~ a2@3 [eb3,d4,f4]@4 ab2@4 [gb3,c4,d4]@3 g2@4 [b3,db4]@4 ~@4 g2@3 [b3,db4]@4 ~@7 [g1,c2,db2]@4 c2@4 [gb3,c4,e4]@3 db2@4 [g3,db4,e4]@4 d2@4]/2", // Dm D7 Bsus2 C Gbm7b5 Dbdim
  AL: "[a3,d4,e4]@3 db2@4 [f3,b3,e4]@4 c2@3 [gb3,c4,e4]@4 db2@4 [g3,db4,e4]@4 ~@3 d2@3", // Asus4 E Gbm7b5 Dbdim
  AM: "[~ [gb2,e3,bb3,eb4]@4 ~@3 c3@4 [e3,c4,e4]@4 gb2@3 [bb2,d4,e4]@4 a2@4 [eb3,d4,f4]@4 ab2@3 [gb3,c4,d4]@4 g2@4 [b3,db4]@4 ~@3 g2@4 [b3,db4]@4 ~@7]/2", // Ebm C Em7b5 Dm D7 Bsus2
  AN: "[g1,c2,db2]@4 c2@3 [gb3,c4,e4]@4 db2@4 [g3,db4,e4]@3 d2@4 [a3,d4,e4]@4 eb2@3 [g3,db4,f4]@3", // C Gbm7b5 Dbdim Asus4 Gm7b5
  AO: "[~ e2@4 [ab3,d4,gb4]@4 f2@3 [a3,eb4,g4]@4 gb2@4 [bb3,e4,a4]@3 b1@4 [a3,eb4,ab4]@4 a2@4 [g3,db4]@3 eb2@4 [bb3,e4]@4 d2@3 [a3,eb4]@4 ab2@4 [c4,gb4]@3 eb4@2 f3@2, ~@15 g2]/2", // Abm7b5 Am7b5 A Ab Gdim Bbdim Adim Cdim
  AP: "[db2,a3,b3]@4 eb4@2 f3@2 [g2,a3,b3]@3 ~@2 eb4@2 f3@2 [a3,b3]@2 eb4@2 ~ [a3,b3]@4 ~@6, ~@11 db2@4 ~@6 f3@2 ~@9", // Gbm G Asus2
  AQ: "[~@24 [c3,c4]@2 [b2,b3]@3 [c3,c4]@2 [b2,b3]@4 [c3,c4]@4 ~ [f2,f3]@4 [gb2,gb3]@2 [eb2,eb3]@4 [c2,c3]@3 [db2,db3]@2 [c2,c3]@4 [d2,d3]@2 [b1,b2]@3, ~@39 [gb2,gb3]@2 ~@23]/2", // C B C B C F Gb Eb …
  AR: "[g2@32 ~@2 db4@2 c4@3 db4@2 a3@4 f3@4 ~ [ab2,d4]@4 [a2,eb4]@2 [g2,db4]@4 [db3,g4]@2 [c3,gb4]@3 [db3,g4]@2 [b2,f4]@4 eb4@2 f4@3 gb4@2 [db2,db3,b3,eb4,g4]@7 ~ [c2,c3,bb3,d4,gb4]@7 [b1,b2,a3,db4,f4]@7 [a1,a2]@7 ~ [a1,a2]@4 [b1,b2]@7 [b1,b2]@4 ~@7 [c2,c3]@4 ~@7 [db2,db3]@4 [d2,d3,a3,d4,gb4]@7 [e2,e3,a3,d4,g4]@4 [f2,f3,b3,d4,ab4]@7 [gb2,gb3,c4,d4,ab4]@4 [g2,g3]@7 ~ [g2,g3]@3 [g1,g2]@11 [g3,c4,e4]@4 [g3,c4,e4]@4 [c1,c2,g3,c4,e4]@3 [g3,bb3,e4]@4 [g3,bb3,e4]@4 [e1,e2,g3,bb3,e4]@4 [a3,c4,f4]@3 [a3,c4,f4]@4 [f1,f2,a3,c4,f4]@4 [ab3,c4,eb4]@3 [ab3,c4,eb4]@4 [gb1,gb2,ab3,c4,eb4]@4 [g1,g2,g3,c4,e4]@4 ~@7 [db1,db2,f3,b3,e4]@7 [c1,c2,e3,bb3,eb4]@4, g1@46 ~@3 [a2,eb4]@2 ~@20 [d2,d3]@7 ~@22 [g3,db4,eb4,a4]@21 ~@2 [c2,c3]@7 ~@4 [db2,db3]@7 ~@48 [c1,c2]@7 ~@4 [e1,e2]@7 ~@5 [f1,f2]@7 ~@4 [gb1,gb2]@7 ~@26, ~@126 [bb3,e4,g4]@7 ~@4 [bb3,e4,g4]@7 ~@23 [b3,eb4,gb4,bb4]@21 ~@68]/8", // Abdim Adim Gdim Dbdim Cdim Dbdim Bdim Ebaug …
  AS: "[c1,bb3,eb4] [c2,e3] [c1,bb3,eb4] [c2,e3] [c1,bb3,eb4] [c2,e3] [c1,c2,e3,bb3,eb4] [c1,bb3,eb4] [c2,e3] [c1,bb3,eb4] [c2,e3] [c1,bb3,eb4] [c2,e3] [c1,bb3,eb4] [c2,e3] [c1,bb3,eb4] [c2,e3] [c1,bb3,eb4] [c1,c2,e3,bb3,eb4] [c2,e3] [c1,bb3,eb4] [c2,e3] ~@10", // Cm7 C Cm7 C Cm7 C C7 Cm7 …
})).s("gm_piano").gain(0.2)

stack(piano, piano_2)