// Sun Flower Slow Drag — Scott Joplin
// 200 bpm, 4/4, key A# major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: Full arrangement: all 143 bars on a 24-step grid, each part at one level. Source detail keeps the original performance.
setcpm(200/4)

// 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 · piano · "PIANO RIGHT"
const piano = note(`<
  A@2 B@6 C@4 D@6 E F G H@6 I J K L@4 ~ M@2 N O@3 P@2 Q@3 R S T@3 U@5 V@3 W@6 X Y Z@7 AA@5 AB@3 AC AD AE@3 AF AG@3 AH AI
  AJ AK@2 AL@5 AM@2 AN@6 AO AP AQ@2 AR@4 AS@3 AT AU@4 AV@4 AW@2 AX@2 AY@3 AZ@5 BA@2
>`.pickRestart({
  A: "[d5@3 ~ f5@5 bb4@3 d5@11 g4@4 a4@2 bb4@4 d4@14 ~]/2",
  B: "[eb4@3 f4@3 g4@3 eb4@2 ~ d4@3 c4@5 f4 ~@2 f3@5 ~@4 [f4,f5] ~@2 [g4,g5]@3 ~@3 [a4,a5] ~@9 d5@3 f5@2 ~ a4@4 ~@2 g4@5 [bb4,d5]@2 ~ [f4,f5]@3 [bb4,d5]@2 ~ g4@2 ~ [f4,f5]@5 ~ d5@3 bb4@2 ~ f4@2 ~ g5@3 g4@3 ab4@3 a4@3 bb4@3 g5@3 g4@3 e5@3 ~@3 f4@3 d5@3 ~ g5@3 ~@3 [a4,a5]@6 f5@2 ~, ~@47 bb5@4 ~@5 a5@4 ~@3 g5@3 ~@11 g5 ~@41 f5@5 ~@17 eb5 ~@2, ~@48 bb4@5 ~@75 g4@3 ~@13]/6", // F G A Bb F Bb F A
  C: "[[bb4,bb5]@3 ~@2 f5@2 ~ [a4,a5]@3 ~@3 g4@6 [bb4,d5]@2 ~ [f4,f5]@3 [bb4,d5]@2 ~ [g4,g5] ~@2 [f4,f5]@6 d5@2 ~ bb4@3 f4@3 c5@3 b4@3 c5@3 d5@3 c5@3 bb4@3 a4@3 g4@3 f4@3 c5@3 eb5@3 ~ [g4,g5]@4 ~@2 [a4,a5]@5 ~ [eb5,f5] ~@2, ~@3 d5@4 ~@7 g5@4 ~@78]/4", // Bb A Bb F Bb G F G …
  D: "[~@3 d5@3 f5@2 ~ [a4,a5]@3 ~@3 g4@5 ~ [bb4,d5]@2 [f4,f5]@3 [bb4,d5] ~@2 g4@2 ~ [f4,f5]@5 ~ d5@2 ~ bb4@3 f4@2 ~ g5@3 g4@3 ab4@3 a4@3 bb4@3 g5@3 g4@3 e5@2 ~ [f4,f5]@3 [bb4,d5] ~@2 [g4,g5] ~@2 [a4,a5]@4 ~@2 [g4,g5]@5 ~ e5@2 ~ [f4,f5]@3 [bb4,d5] ~@2 [g4,g5]@2 ~ [f4,f5]@6 d5@3 b4@3 g4 ~@2 [e4,d5]@2 ~@4 [e4,d5]@2 ~@4 [eb4,d5]@3 ~@4 [eb4,c5]@2 ~@4, [bb4,bb5]@5 ~@10 g5@2 ~@12 g5 ~@50 g4@2 ~@10 bb4 ~@51, ~@80 g5 ~@5 gb5 ~@57]/6", // A Bb F Bb F Bb G A …
  E: "f4@6 [f4,f5]@3 ~@3 [g4,g5]@3 ~@3 [a4,a5] ~@5, [d4,bb4]@19 ~@5", // F G A Gm
  F: "~@3 d5@3 f5@3 [a4,a5]@4 ~@2 g4@6 [bb4,d5]@3, [bb4,bb5]@5 ~@10 g5@4 ~@5", // A Bb
  G: "[f4,f5]@3 [bb4,d5]@2 ~ [g4,g5]@2 ~ [f4,f5]@5 ~ d5@3 bb4@3 f4@2 ~", // F Bb G F
  H: "[g5@3 g4@3 ab4@2 a4@3 bb4@3 g5@3 g4@3 e5@3 f5@3 f4@3 d5@3 [g4,g5]@3 ~@4 [a4,a5]@5 ~ eb5 ~ [bb4,bb5]@3 d5@3 f5@2 ~ [a4,a5]@3 ~@3 g4@6 [bb4,d5]@3 [f4,f5]@3 [bb4,d5]@2 ~ g4@2 ~ [f4,f5]@6 d5@3 bb4@2 ~ f4@2 ~ c5@3 b4@3 c5@3 d5@3 c5@3 bb4@3 a4@3 g4@2 ~ f4@3 ~@3 eb5@3 ~ [g4,g5]@4 ~@2 [a4,a5]@3 [eb5,f5]@3 ~@3, ~@44 f5@2 ~@16 g5@3 ~@12 g5 ~@44 c5@5 ~@17]/6", // G A Bb A Bb F Bb F …
  I: "~@3 d5@2 f5@2 ~@2 [a4,a5]@4 ~@2 g4@6 [bb4,d5]@2 ~, [bb4,bb5]@5 ~@10 g5@3 ~@6", // A Bb
  J: "[f4,f5]@3 [bb4,d5]@2 ~ g4@2 ~ [f4,f5]@5 d5@3 bb4@3 ~ g4@3, ~@6 g5 ~@2 g4 ~@14", // F Bb F
  K: "g5@2 g4@3 ab4@3 ~ a4@3 bb4@3 g5@3 g4@3 e5@2 ~",
  L: "[[f4,f5]@3 [bb4,d5]@2 ~ g4@2 [a4,a5]@4 ~@2 [g4,g5]@4 ~@2 e5@2 ~ [f4,f5]@3 [bb4,d5] ~@2 g4@2 ~ [f4,f5]@6 d5@3 b4@3 g4 ~@2 [e4,d5]@2 ~@4 d5@2 ~@4 [eb4,d5]@2 ~ [eb4,c5]@3 gb4 ~@5 [d4,bb4]@25, ~@5 g5@2 ~@13 bb4 ~@8 g5 ~@23 e4 ~@42]/4", // F Bb A G F Bb F E7 …
  M: "[~@6 [a4,eb5,g5] ~@4 [a4,eb5,g5] ~@5 [a4,eb5,g5] ~@5 [a4,eb5,f5]@2 ~@2 [a4,eb5,a5]@4 ~@2 [a4,eb5,g5]@5 ~ f5@3 eb5@3 c5@3]/2", // Am7b5 F7 Adim Am7b5
  N: "bb4@2 ~@4 [bb4,g5]@2 ~@4 [bb4,d5,g5]@2 ~@3 [bb4,d5,g5]@2 ~@5, ~@6 d5 ~@17", // Eb Gm
  O: "[[d5,f5] ~@2 [bb4,d5,bb5]@3 ~@3 [bb4,d5,g5]@4 ~@2 d5@3 f5 ~@2 bb4 ~ [a4,eb5,a5]@3 ~@3 [ab4,ab5]@2 ~@2 [a4,eb5,a5]@3 ~@2 [bb4,bb5]@6 f5 ~@2 [c5,eb5,c6]@2 ~@4 [b4,b5] ~@3 [c5,eb5,c6]@2 ~@4 [db5,db6]@4 ~@2 f5 ~@2, bb4@2 ~@18 bb5@2 ~@7 eb5 ~@23 eb5@3 ~@16]/3", // Dm Bb Gm Adim Ab Adim Bb Cm …
  P: "[[d5,d6]@2 ~@3 bb4@2 ~ d5 ~@2 [a4,db5,a5]@2 ~@2 [g4,db5]@4 ~@2 [f4,d5,f5]@6 ~@21, db6 ~@13 g5@3 ~@31]/2", // D A Gdim Dm
  Q: "[~@5 [a4,eb5,g5] ~@5 [a4,eb5,g5] ~@5 [a4,eb5] ~@5 [a4,eb5,f5]@2 ~@2 [a4,eb5,a5]@3 ~@3 [a4,eb5,g5]@4 ~@2 f5@2 eb5@3 c5@3 bb4@2 ~@4 [bb4,d5] ~@6 [bb4,d5] ~@5 bb4@2 ~@4, ~@17 g5@2 ~@34 g5@2 ~@4 g5@2 ~@4 g5@2 ~@5, ~@66 d5 ~@5]/3", // Am7b5 Adim F7 Adim Am7b5 Bb
  R: "[bb4,d5,g5]@2 ~ [bb4,d5,f5]@3 ~@3 [bb4,d5,f5]@4 ~@2 bb4@3 d5@2 f5@2 ~@2", // Gm Bb
  S: "[g4,g5] ~@5 bb4@2 ~@3 a4@2 ~@4 [g4,g5] ~@6, ~@6 bb5 ~@4 a5 ~@12", // G
  T: "[[f4,f5]@3 d5 ~@2 g4@2 ~ [f4,f5]@5 ~ d5@3 b4@3 g4 ~ [e4,d5]@3 ~@3 [e4,c5]@3 ~@3 [eb4,d5]@3 ~@3 [eb4,c5]@2 ~@4 [d4,bb4]@9 ~@16, ~@6 g5 ~@65]/3", // F E7 C Ebmaj7 Cm Gm
  U: "[~@6 [a4,eb5,g5] ~@4 [a4,eb5,g5] ~@5 [a4,eb5] ~@5 [a4,eb5,f5]@2 ~@2 [a4,eb5,a5]@3 ~@3 [a4,eb5,g5]@5 ~ f5@2 eb5@3 c5@3 bb4@2 ~@4 [bb4,d5,g5] ~@6 bb4@2 ~@4 [bb4,d5,g5] ~@4 [bb4,d5,f5]@2 ~@2 [bb4,d5,bb5]@3 ~@3 [bb4,d5,g5]@4 ~ bb4@3 d5@2 ~ bb5@2 ~ [a4,eb5,a5]@2 ~@4 eb5 ab5@2 ~ [a4,eb5,a5]@3 ~@3 [bb4,bb5]@6 f5 ~@2, ~@17 g5@2 ~@40 g5@2 ~@59, ~@60 d5 ~@31 bb4 ~@8 ab4@2 ~@17]/5", // Am7b5 Adim F7 Adim Am7b5 Gm Bb Gm …
  V: "[[c5,eb5,c6]@2 ~@4 [b4,eb5,b5] ~@2 [c5,eb5,c6]@2 ~@4 [db5,db6]@5 ~ f5 ~@2 d5@3 bb4@3 d5@3 f5@2 ~ [a4,db5]@2 ~ [g4,db5,g5]@2 ~@4 [f4,d5,f5]@15 ~@12, ~@23 d6@3 ~@10 a5 ~@35]/3", // Cm B Cm Db A Gdim Dm
  W: "[~@6 [a4,eb5,g5] ~@4 [a4,eb5] ~@5 [a4,eb5,g5]@2 ~@4 [a4,eb5,f5]@2 ~@2 [a4,eb5,a5]@2 ~@3 [a4,eb5,g5]@5 ~@2 f5@2 eb5@3 c5@3 bb4@2 ~@4 [bb4,d5,g5]@2 ~@4 [bb4,d5] ~@5 [bb4,d5] ~@6 bb4@2 ~ [bb4,d5,f5]@2 ~@4 [bb4,d5,f5]@4 ~@2 bb4@2 d5@3 f5@3 g5@2 ~@4 [bb4,bb5]@3 ~@3 [a4,a5]@3 ~@3 g4@2 ~@4 [f4,f5]@3 [bb4,d5]@3 g4@2 ~@7 d5@3 ~ b4@3 g4 ~@2, ~@11 g5@2 ~@46 g5@2 ~@4 g5@2 ~@4 [d5,g5]@2 ~@22 g4 ~@17 g5 ~@11 g5 ~@3 [f4,f5]@7 ~@8]/6", // Am7b5 Adim Am7b5 F7 Adim Am7b5 Gm Bb …
  X: "d5 ~@2 [e4,d5] ~@2 [eb4,d5] ~@2 [eb4,c5] ~@2, e4 ~@23", // E7 Ebmaj7 Cm
  Y: "bb4@2 ~@4 [f4,f5]@2 ~@4 [g4,g5] ~@5 [a4,a5] ~@5, d4 ~@23", // F G A
  Z: "[~@2 d5@3 f5@2 ~ [a4,a5]@3 ~@3 g4@6 d5@2 ~ [f4,f5]@3 [bb4,d5]@2 ~ g4@2 ~@2 [f4,f5]@6 d5@3 bb4@2 f4@2 ~ g5@2 ~ g4@3 ab4@3 a4@3 bb4@3 g5@3 g4@3 e5@3 ~@3 f4@3 d5 ~@2 [g4,g5]@4 ~@2 [a4,a5]@6 [eb5,f5]@2 ~@2 bb5@3 ~@2 f5@2 ~@2 [a4,a5]@3 ~@3 g4@6 [bb4,d5]@2 [f4,f5]@3 [bb4,d5]@2 ~ g4@2 ~@2 [f4,f5]@5 ~ d5 ~ bb4@3 f4@2 ~ c5@3 b4@3 c5@3 d5@3 c5@3 bb4@3 ab4@2 ~ g4@2 ~@2, [bb4,bb5]@4 ~@10 g5@3 ~@3 bb4 ~@8 g5 ~@41 f5@6 ~@18 bb4@4 d5@4 ~@8 g5@3 ~@11 g5 ~@3 g4 ~@38]/7", // A F Bb F G A Ebsus2 A …
  AA: "[f4@2 c5@4 eb5@3 f5@2 ~ [g4,g5]@4 ~@2 [a4,a5]@3 f5@2 ~ bb5@2 d5@3 f5@2 ~ [a4,a5]@3 ~@3 g4@6 [bb4,d5]@3 [f4,f5]@3 [bb4,d5]@2 ~ g4@2 ~ f4@7 d5@2 bb4@3 g4@3 g5@3 g4@3 ab4@3 a4@3 bb4@3 g5@3 bb4@3 e5@2 ~ [f4,f5]@3 [bb4,d5]@2 ~ g5@2 ~ [a4,a5]@3 ~@3 g4@5 ~@2 bb4 ~@2, ~@9 eb5 ~@8 gb5 ~@2 eb5 ~ bb4@4 ~@11 g5@2 ~@13 g5 ~@2 f5@6 ~@39 g4 ~@8 g5@2 ~@4 e5@2 ~@2]/5", // G A Bb F Bb F Bb A
  AB: "[[f4,f5]@3 [bb4,d5] ~@2 [g4,g5]@2 ~ [f4,f5]@5 d5@3 ~ b4@2 g4 ~@2 [e4,d5]@3 ~@3 [e4,c5]@3 ~@3 [eb4,d5]@3 ~@3 c5@2 ~@4 [d4,f4,bb4]@20 ~@5, ~@41 eb4 ~@30]/3", // F Bb G F E7 C Ebmaj7 Bb
  AC: "f4@2 ~@10 [d5,f5,bb5] ~@11, ~@6 bb4 ~@5", // Bb
  AD: "[f4,ab4,d5] ~@4 [f4,ab4] ~@3 [f4,db5]@2 ~ c5@2 ~ [f4,ab4,c5]@4 ~@2 [f4,ab4,b4] ~@2, ~@5 d5@2 ~@2 ab4 ~ ab4@2 ~@11, ~@12 f4 ~@11", // Ddim Fm Db Fm Fdim
  AE: "[[f4,ab4,bb4] ~@5 [ab4,f5]@3 bb4 ~@2 [ab4,f5]@3 bb4@2 ~ [ab4,f5]@2 ~ bb4 ~ [g4,eb5]@19 ~@6 [eb4,a4,d5]@4 ~@20, ~@47 [g4,eb5]@8 ~@17]/3", // Bb7 Db Cm D Cm
  AF: "[eb4,a4,d5]@5 ~ [eb4,a4]@2 ~ [eb4,a4,d5]@4 ~@2 c5@3 a4@3 f4 ~@2, ~@5 c5@2 ~@17", // D Ebdim D
  AG: "[[ab4,d5,g5]@3 ~@2 [ab4,d5,f5]@2 ~@2 [ab4,d5,g5]@4 ~ f5@3 d5@3 bb4 ~@2 f5@3 [g5,bb5] ~@2 eb6@2 ~ [d5,d6]@3 ~@4 [c5,c6]@4 ~@2 [eb5,g5] ~@2 bb4@2 [eb5,g5] ~@2 c6 c5 ~@2 [bb4,bb5]@2 ~@4 eb5@2 ~ g5@2 ~@4, ~@23 f6@2 ~@4 eb5 ~@17 bb5@3 ~@22]/3", // G Ddim G Gm D C Eb Bb
  AH: "[eb5,eb6]@3 ab5@3 c6@2 ~ eb6@2 ~@4 f5@3 ~@2 [eb5,eb6] ~@3, ~@4 eb5 ~@2 f6 ~@4", // Eb
  AI: "~@3 eb5@3 g5@2 ~ [bb4,bb5] ~@5 [c5,c6]@2 ~@3 bb5 bb4 ~@2, [bb4,bb5] ~@3", // Bb C Bb
  AJ: "[f4,f5] ~@2 [eb5,eb6] ~ d5 d6 ~ [c5,c6] ~@2 [bb4,bb5] ~@2 [f4,f5] ~@2 [g4,g5] ~@2 [a4,a5] ~@2 [bb4,bb5]", // F Eb C Bb F G A Bb
  AK: "[~@23 [eb4,a4,d5]@4 ~@2 [eb4,a4,c5]@2 ~@2 [eb4,a4,d5]@3 ~@2 c5@3 a4@3 f4 ~@3]/2", // D Adim D
  AL: "[[ab4,d5,g5]@4 ~ [ab4,d5,f5]@2 ~ [ab4,d5,g5]@4 ~@2 f5@3 d5@3 bb4 ~@2 g6 f5@2 g5@2 ~ [eb5,eb6]@2 ~ [d5,d6]@4 ~@2 [c5,c6]@3 ~@3 [eb5,g5] ~@2 [bb4,bb5]@3 [eb5,g5] ~@2 [c5,c6] ~@2 [bb4,bb5]@4 ~@2 eb5 ~@2 g5 ~@2 [bb4,bb5] ~@2 [c5,c6]@2 ~@4 [c5,f5,ab5,c6]@2 ~@4 [c5,f5]@2 ~@4 [b4,f5,ab5,b5]@2 ~@4 [bb4,bb5]@3 [eb5,g5] ~@2 [c5,c6] ~@2 [bb4,bb5]@5 ~ g5@3 e5@3 c5 ~@2 [a4,g5], ~@23 f6@2 ~@95, ~@24 g5 ~ bb5 ~@44 [f5,ab5] ~@11 [ab5,c6] ~@36]/5", // G Ddim G Eb D C Eb Bb …
  AM: "[~@5 [a4,g5] ~@5 [ab4,g5]@2 ~@4 [ab4,f5]@2 ~@4 [g4,eb5]@18 ~@7]/2", // A7 Abmaj7 Db Cm
  AN: "[[eb4,a4,d5]@4 ~@2 [eb4,a4,c5]@2 ~ [eb4,a4,d5]@4 ~@2 c5@3 a4@2 f4 ~@2 [ab4,d5,g5]@4 ~@2 [ab4,d5,f5]@2 ~ [ab4,d5,g5]@3 ~@3 f5@3 d5@3 bb4 ~@2 [f5,g5,f6,g6]@3 g5@2 ~ eb6@2 ~ [d5,d6]@4 ~@3 [c5,c6]@3 ~@3 g5@2 ~ bb4@2 [eb5,g5] ~@2 [c5,c6] ~@3 bb4@3 ~@2 eb5@2 ~ g5 ~@2 bb5 ~@2 [c5,f5,ab5,c6]@7 ~@5 [c5,f5,ab5,c6]@3 ~@3 [b4,f5,ab5]@2 ~@8 eb5@2 [c5,c6] ~@3 bb4@4 ~ g5@3 e5@3 c5 ~@3, ~@50 bb5 ~@2 eb5 ~@2 db6 ~@12 eb5 ~ bb5@3 ~@6 bb5@4 ~@29 b5 ~@5 [bb4,bb5]@5 ~@20, ~@122 g5@2 ~@4 bb5@5 ~@11]/6", // D Adim D G Ddim G Fsus2 D …
  AO: "[a4,g5] ~@5 [a4,g5] ~@5 [ab4,g5]@2 ~@4 [ab4,f5]@2 ~@4", AP: "[g4,eb5]@5 ~@6 [bb4,bb5]@3 ~@3 b5 b4 ~@5",
  AQ: "[c6@3 ab5@3 bb5@2 ~ [c5,c6]@2 ~@4 [db5,db6]@6 ab5@2 ~@3 ab5@3 bb5 ~@2 [d5,d6] ~@5 [g5,g6]@3 ~@3 [f5,f6] ~@3, c5@6 ~@17 [d5,d6]@6 ~@19]/2", // C Db D G F D
  AR: "[[eb5,eb6]@2 g5@3 bb5 ~@3 [d5,d6]@3 ~@3 [c5,c6]@3 ~@3 g5@2 [bb4,bb5]@8 ~@7 [bb4,bb5] ~@2 [c5,c6] ~@2 [d5,d6] ~@2 [eb5,eb6]@3 ab5@2 ~ bb5 ~@2 [d5,d6]@4 ~@3 [c5,c6]@3 ~@2 d5@2 ~ [bb4,bb5]@13 ~@3 [bb4,bb5] ~@2 [c5,c6] ~@2 [d5,d6] ~@2, ~@21 eb5 ~@74]/4", // Eb D C Bb C D Eb D …
  AS: "[[eb5,eb6]@2 g5@3 bb5 ~@2 [d5,d6]@3 ~@3 [c5,c6]@3 ~@3 eb5 ~@2 [bb4,bb5]@7 ~@5 [bb4,ab5,bb5]@2 ~@4 [b4,ab5] ~@5 [c5,c6]@4 ab5@3 bb5@2 ~ [c5,c6]@3 ~@3 [db5,db6]@4 ~@2 ab5@2 ~, ~@41 b5@2 ~@29]/3", // Eb D C Bb Bb7 E C Db
  AT: "d6@3 ab5@2 bb5@2 ~@2 d6@2 ~@4 [g5,g6]@4 ~@2 [f5,f6] ~@2, d5@6 ~@3 d5 ~@14", // G F
  AU: "[[eb5,eb6]@2 ~ g5@2 bb5 ~@3 [d5,d6]@3 ~@3 [c5,c6]@3 ~@3 g5@2 [bb4,bb5]@3 [eb5,g5] ~@2 [c5,c6] ~@2 [bb4,bb5]@3 ~@3 eb5@2 ~ g5@2 ~ bb5 ~@2 [c5,c6]@2 ~@4 [c5,f5,ab5,c6]@4 ~@2 [c5,f5,ab5,c6]@2 ~@4 [f5,ab5]@2 ~@4 [bb4,eb5,g5]@2 ~ [eb5,g5] ~@2 [c5,c6] ~@2 [bb4,bb5]@4 ~@2 g5@3 e5@3 c5 ~@2 [a4,g5], ~@21 eb5 ~@25 [f5,ab5] ~@17 [b4,b5] ~@5 bb5@3 ~@22]/4", // Eb D C Bb Eb C Bb C …
  AV: "[~@5 [a4,g5] ~@5 g5@2 ~@4 f5@2 ~@4 [g4,eb5]@5 ~@20 b5 ~@2 ab5@2 bb5@2 ~@2 [c5,c6]@3 ~@2 [db5,db6]@6 ab5 ~@2 db6 ~@2 ab5@3 bb5 ~@3 db6 ~@5 [g5,g6]@4 ~@2 [f5,f6] ~@2, ~@11 ab4 ~@5 ab4 ~@29 c5@6 ~@18 [d5,d6]@6 ~@3 [d5,d6]@3 ~@13, ~@47 c6@3 ~@46]/4", // A7 Cm C Db G F D
  AW: "[eb5@2 ~ g5@2 bb5 ~@3 [d5,d6]@3 ~@3 [c5,c6]@3 ~@3 [eb5,g5] ~ [bb4,bb5]@12 ~@4 [bb4,bb5] ~@2 [c5,c6] ~@2 [d5,d6] ~@2, eb6 ~@47]/2", // D C Eb Bb C D
  AX: "[[eb5,eb6]@3 ab5 ~ bb5@2 ~ [d5,d6]@3 ~@3 c6@6 d5 ~@2 [bb4,bb5]@12 ~@4 [bb4,bb5] ~@2 [c5,c6] ~@2 [d5,d6] ~@2, ~@7 c5@2 ~@15]/2", // Eb D Bb C D
  AY: "[[eb5,eb6]@2 g5@3 bb5 ~@2 [d5,d6]@3 ~@3 [c5,c6]@4 ~@2 eb5 ~@2 [bb4,bb5]@8 ~@4 [bb4,ab5,bb5]@2 ~@4 [b4,ab5] ~@8 ab5@3 bb5@2 ~ [c5,c6]@3 ~@4 [db5,db6]@5 ~ ab5@2 ~, ~@41 b5@2 ~@4 [c5,c6]@5 ~@20]/3", // Eb D C Bb Bb7 E C Db …
  AZ: "[~@3 ab5@2 bb5@2 ~ d6@2 ~@5 [g5,g6]@3 ~@2 [f5,f6] ~@2 [eb5,eb6]@2 ~@2 g5@2 bb5@2 ~@2 [d5,d6]@3 ~@3 [c5,c6]@3 ~@3 g5@2 [bb4,bb5]@3 g5 eb5 ~ [c5,c6] bb5 ~@2 [bb4,eb5,g5,bb5]@4 ~ eb5@3 g5@2 ~ bb5 ~@2 [c5,f5,ab5,c6]@7 ~@5 [c5,f5,ab5]@2 ~@3 [b4,f5,ab5,b5] ~@5 [bb4,bb5]@3 g5 ~@2 [c5,c6] ~@2 [bb4,bb5]@4 ~ g5@3 e5@3 c5 ~@2 [a4,g5] ~@2, [d5,d6]@6 ~@2 d5 ~@36 eb5 ~@37 c6 ~@36]/5", // G F Eb D C Bb C Eb …
  BA: "[~@3 [a4,g5] ~@5 [ab4,g5]@2 ~@4 f5@2 ~@4 g4@6 ~@5 [eb5,g5,bb5,eb6]@4 ~@12, ~@15 ab4 ~@4 eb5@6 ~@22]/2", // A7 Abmaj7 Eb
})).s("gm_piano").gain(0.26)

// chords · piano · "PIANO LEFT"
const piano_2 = note(`<
  A B C D E F@3 G H I J K L@5 M N O P Q R S T@2 U V@2 W@2 X Y Z AA AB AC AD AE AF AG@2 AH AI E AJ@2 AK AL@2 AM AN AO AP
  AQ AR AS@2 AT AB E AU@2 AV AW AX AY AZ@4 BA BB@2 BC BD@5 BE BF BG BH@2 BI BJ@2 BK BL BM BN@2 BO@3 BK BP@2 BQ BR BS@3
  BT BU BV BW@2 BX BY BZ BK CA CB CC CD CE CF CG BK CH CI CJ CK CL CM CN CO CP CB CQ CR CS CT BZ BK CU CV CW CX CY
>`.pickRestart({
  A: "d4@4 f4@5 bb3@3 d4@9 ~@3", B: "g3@3 a3@3 bb3@3 d3@10 ~@5", C: "eb3@3 f3@3 g3@3 eb3@3 d3@3 c3@6 f3 ~ f2",
  D: "g2 ~@4 [f2,f3]@3 ~@4 eb3@2 db2 ~@2 [c2,c3] ~@5 [bb2,bb3], ~@11 eb2@2 ~@11", // F C Bb
  E: "~@5 [f3,bb3,d4] ~@5 f2 ~@5 [f3,bb3,d4] ~@5 bb2", // Bb
  F: "[~@5 [f3,bb3,d4] ~@5 d3 ~@5 [f3,bb3,d4] ~@5 [eb3,eb4]@3 ~@3 [bb2,bb3]@3 ~@3 [c3,c4]@3 ~@3 [db3,db4]@3 ~@3 d3@2 ~@4 [f2,f3]@2 ~@4 eb2@2 ~ db2 ~@2 [c2,c3] ~@6, ~@47 d4 ~@11 eb3 ~@12]/3", // Bb Eb Bb C Db F C
  G: "bb2 ~@4 [bb2,bb3] ~@5 [f3,bb3,d4] ~@5 [f3,bb3,d4] ~@5 bb2", H: "~@5 [f3,bb3,d4] ~@5 d3@4 ~@2 db3@4 ~@2 c3",
  I: "~@5 [a3,c4,f4]@2 ~@4 c3 ~@5 [bb3,c4,e4] ~@2 bb3 ~@2 [f3,a3,c4], ~@17 g3@2 ~@5", // F C7 F
  J: "~@5 [f2,f3]@2 ~@4 [eb2,eb3]@2 ~@5 [c2,c3]@3 ~@3", K: "bb2@2 ~@4 [f3,d4] bb3 ~@4 f2 ~@4 f3 [bb3,d4] ~@4 bb2",
  L: "[~@5 [f3,bb3,d4] ~@5 d3 ~@5 [f3,bb3,d4] ~@5 [eb3,eb4]@2 ~@4 [bb2,bb3]@3 ~@3 [c3,c4]@3 ~@3 [db3,db4]@4 ~@3 d4@3 ~@2 [eb3,eb4]@3 ~@3 [f3,f4]@3 ~@3 [eb3,eb4]@3 ~@3 [d3,d4]@2 ~@4 [f3,bb3]@2 ~@4 g2 ~@5 [g3,b3,d4]@2 ~@4 [g3,bb3]@2 ~@4 [c3,g3,bb3]@2 ~@5 [f3,a3]@2 ~@4 [f3,a3] ~@5, ~@47 d3@3 ~@27 d4 ~@11 f4 ~@5 c3 ~@24]/5", // Bb Eb Bb C Db Eb F Eb …
  M: "bb2@2 ~@4 f2@2 ~@4 [eb2,eb3]@2 ~@4 [c2,c3]@3 ~@3, bb3 ~@5 f3 ~@17", // Eb C
  N: "bb3@2 ~@4 [f3,bb3,d4] ~@5 f2 ~@4 f3 [bb3,d4] ~@5, bb2 ~@23", // Bb
  O: "bb2 ~@4 bb3 d4 ~@5 d3 ~@5 [f3,bb3,d4] ~@5, ~@5 f3@2 ~@17", // Bb
  P: "[eb3,eb4]@2 ~@3 [bb2,bb3]@2 ~@4 [c3,c4]@2 ~@4 [db3,db4]@3 ~@3 [d3,d4]", // Eb Bb C Db D
  Q: "~@5 [f2,f3]@2 ~@4 [eb2,eb3]@2 ~@4 c3@2 ~@5", R: "[bb2,bb3] ~@4 [f3,bb3,d4] ~@5 f2 ~@5 [f3,bb3,d4] ~@5 bb2",
  S: "~@5 [f3,bb3,d4] ~@5 d3@3 ~@3 db3@2 ~@4 c3", // Bb
  T: "[~@5 [c4,f4] ~@5 c3 ~@5 [g3,bb3,c4,e4]@2 ~@4 [f3,a3]@2 ~@4 [f2,f3]@2 ~@4 [eb2,eb3]@2 ~@4 c2 c3 ~@5, ~@5 a3@2 ~@16 c4 ~@24]/2", // F5 C7 F Eb
  U: "[bb2,bb3] ~@4 [f3,bb3,d4] ~@5 f2 ~@6 [bb3,d4] ~@5, ~@9 f3 ~@2", // Bb
  V: "[bb2 ~@4 f3 [bb3,d4] ~@5 d3 ~@4 [f3,bb3,d4]@2 ~@4 [eb3,eb4]@3 ~@3 [bb2,bb3]@3 ~@3 [c3,c4]@4 ~@3 [db3,db4]@3 ~@3]/2", // Bb Eb Bb C Db
  W: "[[d3,d4]@3 ~@3 [eb3,eb4]@2 ~@3 [f3,f4]@2 ~@4 [eb3,eb4]@2 ~@4 [db4,d4]@2 ~@4 [f3,bb3,d4] ~@5 g2 ~@5 [g3,b3,d4,f4] ~@5 [c3,g3,bb3], ~@23 [db3,d3] ~@24]/2", // D Eb F Eb Dmaj7 Bb G7 C7 …
  X: "~@5 [c3,bb3]@2 ~@4 f3@2 ~@4 [f3,a3] ~@5 [bb2,bb3], ~@5 g3 ~@5 a3 ~@12", // C7 F Bb
  Y: "~@5 f3@2 ~ [g2,g3]@4 ~@2 [f2,f3] ~@2 [d2,d3] ~@2 [c2,c3] ~@2 bb2, ~@5 f2 ~@18", // G F D C
  Z: "~@5 [f2,f3]@3 ~@3 [g2,g3]@2 ~@5 ab2@2 ~@4, ~@17 ab3@2 ~@5", // F G
  AA: "[a2,a3] ~@5 [f3,c4,eb4] ~@5 f2 ~@4 [f3,c4,eb4] ~@5 c3", AB: "~@5 [f3,c4,eb4] ~@5 f2 ~@5 [f3,c4,eb4] ~@5 bb2",
  AC: "~@5 [f3,bb3,d4] ~@6 f2 ~@5 [f3,bb3,d4] ~@4 bb2", AD: "~@5 [f3,d4] bb3 ~@4 f2 ~@5 [f3,bb3,d4] ~@5 c3",
  AE: "~@5 [f3,c4,eb4] ~@6 f2 ~@4 [f3,c4,eb4] ~@5 a2", AF: "~@5 [f3,c4,eb4] ~@5 c3 ~@5 [f3,c4,eb4] ~@5 bb2",
  AG: "[~@5 [f3,bb3,d4]@2 ~@4 [e3,db4]@2 ~@4 [e3,bb3] ~@5 [bb3,d4] ~@5 [f2,f3]@3 ~@3 [g2,g3]@4 ~@2 [ab2,ab3]@3 ~@3 a2, ~@11 bb3 ~@5 db4@2 ~@4 f3@2 ~@23]/2", // Bb Dbm Edim Bb F G Ab
  AH: "a3 ~@4 [f3,eb4] c4 ~@4 f2 ~@5 [f3,c4,eb4] ~@5 c3", // F7
  AI: "~@5 [c4,eb4] ~@5 f2 ~@5 [f3,c4,eb4] ~@5 bb2, ~@5 f3@2 ~@17", // Cm F7
  AJ: "[~@6 [f3,bb3,d4] ~@4 d3 ~@5 [f3,ab3,bb3,d4] ~@5 [eb3,g3,bb3,eb4]@2 ~@5 [g2,g3]@3 ~@3 [f2,f3]@2 ~@4 eb2@2 ~@3 [d2,d3], ~@41 eb3@2 ~@5]/2", // Bb Bb7 Eb G F D
  AK: "~@5 [bb3,d4] ~@6 g2 ~@4 [g3,b3]@2 ~@4 [c3,bb3], ~@5 f3@2 ~@10 [d4,f4] ~@6", // Bb G C7 Dm
  AL: "[g3 ~@4 [c3,bb3]@2 ~@4 [f3,a3] ~@5 [f3,a3] ~@5 bb2@2 ~@4 [f2,f3]@3 ~@3 [g2,g3]@2 ~@4 [ab2,ab3]@3 ~@4, ~@5 g3 ~@17 bb3 ~@24]/2", // C7 F G Ab
  AM: "[a2,a3] ~@4 [f3,eb4] c4 ~@4 f2 ~@5 [f3,c4,eb4] ~@5 c3", // A F7
  AN: "~@5 [f3,c4,eb4] ~@5 f2 ~@5 [c4,eb4] ~@5 bb2, ~@17 f3@2 ~@5", // F7 Cm
  AO: "~@5 [f3,bb3,d4] ~@5 f2 ~@5 f3 [bb3,d4] ~@4 bb2", AP: "~@5 [f3,bb3,d4] ~@5 f2 ~@5 [f3,bb3,d4] ~@5 c3",
  AQ: "~@5 [f3,c4,eb4] ~@5 f2 ~@6 [f3,c4,eb4] ~@5", AR: "a2 ~@5 [f3,a3,eb4] ~@5 f2 ~@5 [f3,a3,eb4] ~@4 bb2",
  AS: "[~@5 [f3,d4] ~@5 [e3,bb3,db4] ~@6 [e3,bb3] ~@4 [bb3,d4] ~@5 [f2,f3]@2 ~@4 g3@2 ~@4 [ab2,ab3]@2 ~@4 [a2,a3], ~@5 bb3@2 ~@10 db4@2 ~@4 f3@2 ~@10 g2 ~@12]/2", // Dm Bbdim Edim Bb F Ab A
  AT: "~@5 [f3,eb4] c4 ~@5 f2 ~@4 [f3,eb4] c4 ~@4 c3", // F7
  AU: "[~@5 [f3,bb3,d4] ~@5 d3 ~@5 [f3,ab3,bb3,d4] ~@5 [eb3,g3,bb3]@2 ~@4 [g2,g3]@3 ~@3 f2@2 ~@4 [eb2,eb3]@2 ~@5, ~@23 eb4 ~@11 f3 ~@12]/2", // Bb Bb7 Eb G Eb
  AV: "[d2,d3] ~@4 [f3,bb3,d4] ~@6 g2 ~@4 [g3,b3,d4,f4] ~@6", // D Bb G7
  AW: "[bb2,c3,g3,bb3] ~@4 bb3 g3 ~@5 [f3,a3]@2 ~@4 [f3,a3] ~@5, ~@5 c3@2 ~@17", // C7 F
  AX: "[bb2,bb3] ~@5 f2@2 ~@4 eb2@2 ~@3 c3 c2 ~@5, ~@6 f3 ~@5 eb3 ~@11", // Bb
  AY: "bb3@2 ~@3 [f3,bb3,d4] ~@5 f2 ~@5 [bb3,d4] ~@5 bb2, bb2 ~@16 f3@2 ~@5", // Bb
  AZ: "[~@5 [f3,bb3,d4] ~@5 d3 ~@5 [f3,d4] ~@5 [eb3,eb4]@2 ~@4 [bb2,bb3]@2 ~@4 [c3,c4]@3 ~@3 [db3,db4]@3 ~@3 d3@2 ~@4 [f2,f3]@2 ~@4 [eb2,eb3] ~@5 [c2,c3] ~@5 bb3@2 ~@4 [f3,d4] bb3 ~@4 f2 ~@6 [f3,bb3,d4] ~@5, ~@17 bb3@2 ~@28 d4 ~@23 bb2 ~@24]/4", // Bb Dm Eb Bb C Db F Eb …
  BA: "bb2 ~@4 d4 [f3,bb3] ~@5 d3@3 ~@3 db3 ~@5", // Bb5
  BB: "[c3 ~@4 [a3,c4,f4] ~@5 c3 ~@5 [g3,bb3,c4,e4] ~@5 [f3,a3,c4]@2 ~@5 [f2,f3]@2 ~@4 [eb2,eb3]@2 ~@4 [c2,c3] ~@5]/2", // F C7 F Eb C
  BC: "bb2 ~@4 [f3,bb3,d4] ~@5 f2 ~@5 [f3,bb3,d4] ~@5 bb2", // Bb
  BD: "[~@5 [f3,bb3,d4] ~@5 d3@2 ~@4 [bb3,d4] ~@5 [eb3,eb4]@2 ~@4 [bb2,bb3]@3 ~@3 [c3,c4]@3 ~@3 [db3,db4]@4 ~@2 [d3,d4]@3 ~@3 [eb3,eb4]@2 ~@4 [f3,f4]@2 ~@4 [eb3,eb4]@3 ~@3 [d3,d4]@2 ~@4 [f3,bb3,d4] ~@5 g2 ~@5 [g3,b3]@2 ~@4 bb3 g3 ~@4 [c3,bb3]@2 ~@4 a3@2 ~@4 [f3,a3] ~@5 [bb2,bb3], ~@17 f3@2 ~@70 [d4,f4] ~@5 c3@2 ~@4 g3 ~@5 f3 ~@12]/5", // Bb Eb Bb C Db D Eb F …
  BE: "~@5 f3@2 ~ [g2,g3]@3 ~@4 [f2,f3] ~@2 [d2,d3] ~ c3 c2 ~ bb2, ~@5 f2 ~@18", BF: "~@11 [bb2,bb3] ~@12",
  BG: "[bb2,bb3]@4 ~@2 [b2,b3]@2 ~@3 [c3,c4]@3 ~@3 [db3,db4]@3 ~@3 [d3,d4]", // Bb B C Db D
  BH: "[~@5 [bb2,bb3]@2 ~@4 c4@2 ~@4 d4@2 ~@4 [eb2,eb3,eb4]@3 ~@3 g2@2 ~ ab3@2 ~ [a2,b2,a3] ~@2 [bb2,bb3] ~@2 [c3,c4] ~@2 [d3,d4] ~@2 [eb3,eb4], ~@11 c3 ~@5 d3 ~@11 g3 ~@2 ab2 ~@15]/2", // Bb Eb Asus2 Bb C D Eb
  BI: "~@5 [bb2,bb3]@2 ~@4 [g2,g3]@2 ~@4 [gb2,gb3]@2 ~@5", // Bb G Gb
  BJ: "[[f2,f3]@6 ~@6 [a2,a3]@5 ~@6 [bb2,bb3]@7 ~@5 [d3,d4]@5 ~@7 [eb2,eb3]]/2", // F A Bb D Eb
  BK: "~@5 [bb3,eb4,g4] ~@5 bb2 ~@5 [bb3,eb4,g4] ~@5 eb3", BL: "~@5 [bb3,eb4,g4] ~@5 g2 ~@5 [bb3,eb4,g4] ~@6",
  BM: "ab2 ~@5 [c4,eb4] ~@4 ab2 ~@5 [ab3,b3,e4] ~@5 eb3", // Cm E
  BN: "[~@5 [bb3,eb4,g4] ~@5 [g2,g3]@3 ~@3 [gb2,gb3]@3 ~@3 [f2,f3]@2 ~@5 [f3,d4]@2 ~@4 f3@2 ~@3 [a3,eb4]@2 ~@4 [bb3,d4], ~@30 bb3 ~@10 c4 ~@6]/2", // Eb G Gb F Dm Adim Bb
  BO: "[~@5 [bb2,bb3] ~@5 [g2,g3]@3 ~@3 [gb2,gb3]@2 ~@4 [f2,f3]@6 ~@6 [a2,a3]@7 ~@5 [bb2,bb3]@7 ~@5 [d3,d4]@5 ~@7 [eb2,eb3]]/3", // Bb G Gb F A Bb D Eb
  BP: "[~@5 [bb3,eb4,g4] ~@5 [g2,g3] ~@5 [eb4,g4] ~@5 ab2 ab2@2 ~@3 [c4,f4,ab4] ~@5 [f2,f3]@2 ~@4 [g2,g3] ~@2 [ab2,ab3] ~ [bb2,bb3] ~, ~@17 bb3@2 ~@4 ab3@2 ~@23]/2", // Eb G Eb Fm F G Ab Bb
  BQ: "~@5 [bb3,eb4,g4] ~@5 c3 ~@5 [g3,bb3,c4,e4] ~@5 [f3,c4,eb4]", // Eb C7 F7
  BR: "~@5 [f3,eb4]@2 ~@4 bb3@2 ~@5 [bb3,d4] ~@5, ~@5 c4 ~@5 d4 ~@12", // F7 Bb
  BS: "[eb3@2 ~@4 bb3@2 ~@4 [g2,g3] ~@5 gb3@2 ~@3 [f2,f3]@6 ~@7 [a2,a3]@5 ~@6 [bb2,bb3]@6 ~@6 [d3,d4]@5 ~@7 [eb2,eb3], eb4 ~@5 bb2 ~@5 bb2@2 ~@3 gb2@2 ~@53]/3", // G F A Bb D Eb
  BT: "~@5 [bb3,eb4,g4] ~@5 bb2 ~@5 [eb4,g4] ~@6, ~@17 bb3@2 ~@5", // Eb
  BU: "[g2,g3] ~@4 [bb3,eb4,g4] ~@5 [bb2,bb3] ~@5 [eb3,g3,bb3,eb4] ~@5 [ab2,ab3]", // G Eb Bb Eb Ab
  BV: "~@5 [c4,f4,ab4] ~@5 [f2,f3]@3 ~@3 [g2,g3] ~@2 [ab2,ab3] ~@2 [bb2,bb3]", // Fm F G Ab Bb
  BW: "[~@5 [bb3,eb4,g4] ~@5 c3 ~@5 [bb3,c4,e4] ~@5 [c4,eb4] ~@5 [f3,eb4]@2 ~@4 d4@2 ~@5 [bb3,d4] ~@5, ~@23 f3@2 ~@4 c4 ~@5 bb3 ~@12]/2", // Eb C7 Cm F7 Bb
  BX: "[eb3,eb4] ~@5 [bb2,bb3] ~@5 [eb2,eb3]@4 ~@7 [f2,f3]", // Eb Bb Eb F
  BY: "~@2 eb4 ~@2 [bb3,d4,ab4] ~@6 bb2 ~@4 [bb3,d4,ab4] ~@5 f3", // Bb7
  BZ: "~@5 [bb3,d4,ab4] ~@5 bb2 ~@5 [bb3,d4,ab4] ~@5 eb3", CA: "~@5 [bb3,eb4,g4] ~@5 bb2 ~@5 [bb3,eb4,g4] ~@5 g3",
  CB: "~@5 [bb3,d4,ab4] ~@5 bb2 ~@5 [bb3,d4,ab4] ~@5 db3", CC: "~@5 [bb3,d4,ab4] ~@5 bb2 ~@5 [bb3,d4,ab4] ~@6",
  CD: "eb3 ~@4 [bb3,eb4,gb4] ~@6 bb2 ~ bb3 ~@2 [bb3,eb4,g4] ~@5 eb3", CE: "~@12 [bb2,bb3] ~@4 [f3,d4] bb3 ~@4 [f2,f3]",
  CF: "~@5 [bb3,d4,ab4] ~@6 bb2 ~@4 [bb3,d4,ab4] ~@6", CG: "f3 ~@4 ab4 [bb3,d4] ~@4 bb2 ~@5 [bb3,d4,ab4] ~@5 eb3",
  CH: "~@5 [bb3,eb4,g4] ~@5 [g2,g3] ~@4 bb3 [eb4,g4] ~@5 [ab2,ab3]", // Eb G Eb Ab
  CI: "~@5 [c4,f4,ab4] ~@5 [f2,f3]@3 ~@3 [g2,g3] ~@2 [a2,a3] ~ bb2 bb3", // Fm F G A
  CJ: "~@5 [bb3,eb4,g4,a4] ~@2 eb3 ~@2 c3 ~@5 [g3,bb3,c4,e4] ~@5 [f3,c4,eb4]", // Eb C7 F7
  CK: "~@5 [f3,c4]@2 ~@4 d4@2 ~@4 [bb3,d4] ~@5 [eb3,eb4], ~@5 eb4 ~@5 bb3 ~@12", // F5 Bb Eb
  CL: "~@5 [bb2,bb3] ~@5 [eb2,eb3]@6 ~@6 [f2,f3]", CM: "~@5 [bb3,d4,ab4] ~@5 bb2 ~@5 [bb3,d4,ab4] ~@5 f3",
  CN: "~@5 [bb3,d4,ab4] ~@5 eb3 ~@5 [bb3,d4,ab4] ~@6", CO: "eb3 ~@4 [bb3,eb4,g4] ~@5 bb2 ~@5 [eb4,g4] bb3 ~@5",
  CP: "eb3 ~@4 [bb3,eb4,g4] ~@5 bb2 ~@5 [bb3,eb4,g4] ~@5 f3", CQ: "~@4 [bb3,ab4] d4 ~@5 bb2 ~@5 [bb3,d4,ab4] ~@6",
  CR: "eb3 ~@4 [bb3,eb4,g4] ~@5 bb2 ~@5 [g3,bb3,eb4,g4] ~@5 eb3", // Eb
  CS: "~@5 [eb4,g4] ~@5 [bb2,bb3]@2 ~@10 [f2,f3], ~@5 bb3@2 ~@17", // Eb Bb F
  CT: "~@5 [bb3,d4,ab4] ~@4 bb2 ~@6 [bb3,d4,ab4] ~@5 [f2,f3]", // Bb7 F
  CU: "~@5 [eb4,g4] ~@5 [g2,g3] ~@5 [bb3,eb4,g4] ~@5 [ab2,ab3], ~@5 bb3@2 ~@17", // Eb G Eb Ab
  CV: "~@5 [c4,f4,ab4] ~@5 [f2,f3]@3 ~@2 [g2,g3] ~@2 [ab2,ab3] ~@2 [bb2,bb3] ~", // Fm F G Ab Bb
  CW: "~@3 [bb3,eb4,g4] ~@5 c3 ~@5 [g3,bb3,c4,e4] ~@5 [f3,c4,eb4] ~@2", // Eb C7 F7
  CX: "~@3 [c4,eb4] ~@5 [bb3,d4] ~@5 [bb3,d4] ~@5 [eb3,g3,bb3,eb4] ~@2, ~@3 f3@2 ~@19", // Cm Bb Eb
  CY: "~@2 [bb2,bb3] ~@5 [eb2,eb3] ~@15", // Bb Eb
})).s("gm_piano").gain(0.26)

stack(piano, piano_2)