// Cathedral — Two Steps From Hell
// 75 bpm, 4/4, key F 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 67, 4/4 at bar 68) are rendered on a constant 4/4 grid of one bar per cycle
// note: sustain pedal (CC 64) lengthens the held notes
// note: Transcription provider: pdmx. https://musescore.com/score/5875128; license: https://creativecommons.org/publicdomain/zero/1.0/
// note: Full arrangement: all 72 bars on a 32-step grid, each part at one level; ghost notes are separate "_soft" parts. Source detail keeps the original performance.
setcpm(75/4)

// 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
const piano = note(`<
  ~@11 A B@3 C@8 D@2 E F G H I J K L M N O P Q R S T U V W X Y@2 Z AA AB@3 AC AD AE AF AG AH AI AJ AK AL AM AN AO AP@2
  AQ@5
>`.pickRestart({
  A: "~ [d4,f4,d5]@15", B: "[~@5 [c4,f4,c5]@33 ~ [d4,f4,bb4]@33 ~ [f4,g4]@17 f4@6, ~@73 db4@23]/3",
  C: "[~@3 db4@8 [c4,f4,c5]@33 ~@2 [db4,e4,a4]@33 ~ [d4,f4,d5]@33 ~ [f4,g4]@17 f4@49 ~@3 [bb3,bb4]@33 ~ [bb3,bb4]@33 ~ g4@5, ~@114 db4@33 ~@109]/8", // F5 A Dm Fsus2 Bb
  D: "[~@13 f4@16 ~ c5@33 ~]/2", E: "c4@7 f4", F: "g4 a4@5 d4@2", G: "e4@14 c4 e4", H: "f4@8 g4@6 a4 g4",
  I: "f4@10 e4 f4 e4@2 c4 f4", J: "g4@2 a4@10 g4@2 f4 g4", K: "c5@6 a4 c5", L: "bb4@16 a4@5 g4@5 ~ f4@5",
  M: "[d4,f4]@15 ~", N: "f4@23 ~ f4@4 g4@4, [c4,a4]@15 ~", O: "[d4,f4,bb4]@15 ~", P: "[db4,f4,g4]@15 ~",
  Q: "f4@7 g4, a4@27 ~@5", R: "e4@7 bb4, a4@27 ~@5", S: "d4@7 f4, a4@27 ~@5", T: "[f4,g4]@15 ~", U: "f4@15 ~",
  V: "c4@27 ~@3 e4@2, ~@7 f4", W: "g4 ~@6 d4, d4@27 ~@5, ~@4 a4@27 ~", X: "e4@27 ~ [g4,a4]@2 a4@2",
  Y: "[[f4,bb4]@15 ~ c5@2 bb4@2 ~@4 a4@4 [a4,bb4]@2 g4@2 [c4,f4]@19 ~ e4@2 f4@2 e4@4 [c4,f4]@2 f4@2, ~@16 g4@4 g4@7 ~@3 a4@28 ~@6]/2", // Bb5 Bbmaj7 F5
  Z: "g4@2 ~@10 g4@2 ~ g4, ~@4 a4@23 ~ f4@4", AA: "e4@27 ~ g4@2 a4@2",
  AB: "[bb4@15 ~ [a4,c5]@2 bb4@2 [g4,a4]@2 ~@2 a4@4 bb4@2 f4@2 f4@30 ~@2 [e4,g4]@28 f4@4, ~@22 g4@8 a4@59 ~@7]/3", // Am Gsus2 Em
  AC: "a4@2 g4@2 a4@23 ~ [g4,a4]@2 a4@2, [e4,c5]@27 ~@5", // Gsus2 C
  AD: "~@2 a4@2 bb4@11 ~@3 bb4@2 g4@4 a4@4 bb4@2 a4@2, bb4@4 ~@12 c5@11 ~ f4@4", AE: "a4@23 ~ a4@4 g4@2 f4@2, f4@15 ~",
  AF: "[e4,g4]@7 f4, d4@27 ~@5", AG: "[e4,a4]@14 g4 a4, c5@27 ~@5",
  AH: "bb4@15 ~@3 bb4@2 g4@4 a4@4 bb4@2 a4@2, e4@15 ~, ~@16 c5@15 ~", AI: "[d4,f4,a4]@15 ~",
  AJ: "[c4,f4]@14 g4 a4, a4 ~@7", AK: "[f4,bb4]@6 f4 g4, d4@15 ~",
  AL: "[g4,ab4] ~@2 db4, db4@3 ~, f4@8 f4@7 ~, ~@4 g4@11 ~", AM: "~@6 a4 g4, [a3,c4,f4]@15 ~",
  AN: "g4@12 g4@3 f4, [e4,a4]@15 ~", AO: "f4@6 f4 g4, [d4,a4]@15 ~",
  AP: "[[g4,ab4]@8 ~@8 f4@15 ~, db4@61 ~@3, f4 ~, ~@16 g4@45 ~@3]/2", // Abmaj7
  AQ: "[~@16 a4@28 bb4@4 a4@33 a4@26 a4@6 g4 f4 d4@35 ~@10]/5",
})).s("gm_piano").gain(0.4)

// chords · piano
const piano_2 = note(`<
  A@3 B@2 C@2 D@2 E@2 F@3 G@4 H@4 I@3 J K L M J K L M N O P Q N O P Q R J K L M J K L M J K L M J K L M N O P Q O S N Q
  R T U V W@2
>`.pickRestart({
  A: "[~@22 [d3,f3,a3]@9 [d3,f3,a3]@9 [d3,f3,a3]@9 ~ [d3,f3,a3]@9 [c3,f3,a3]@9 [c3,f3,a3]@9 [c3,f3,a3]@9 ~ [c3,f3,a3]@9]/3", // Dm F
  B: "[[d3,f3,bb3]@9 [d3,f3,bb3]@9 [d3,f3,bb3]@9 ~ [d3,f3,bb3]@9 [d3,f3,bb3]@9 [d3,f3,bb3]@9 [d3,f3,bb3]@9]/2", // Bb
  C: "[[d3,f3,bb3]@9 ~ [c3,f3,a3]@9 [c3,f3,a3]@9 [c3,f3,a3]@9 [c3,f3,a3]@9 ~ [e3,a3,db4]@9 [e3,a3,db4]@8]/2", // Bb F A
  D: "[~ [e3,a3,db4]@9 [e3,a3,db4]@9 ~ [d3,f3,a3]@9 [d3,f3,a3]@9 [d3,f3,a3]@9 [d3,f3,a3]@9 [db3,f3,g3]@8]/2", // A Dm Gm7b5
  E: "[~@2 [db3,f3,g3]@9 [db3,f3,g3]@9 [db3,f3,g3]@9 [db3,f3,g3]@9 ~ [db3,f3,g3]@9 [db3,f3,g3]@9 [db3,f3,g3]@7]/2", // Gm7b5
  F: "[~@2 [d3,f3,a3]@9 [d3,f3,a3]@8 [d3,f3,a3]@9 [d3,f3,a3]@9 [c3,f3,a3]@8 [c3,f3,a3]@9 [c3,f3,a3]@8 [c3,f3,a3]@9 [d3,f3,bb3]@8 [d3,f3,bb3]@9 [d3,f3,bb3]@8]/3", // Dm F Bb
  G: "[~ [d3,f3,bb3]@8 [db3,f3,g3]@9 [db3,f3,g3]@8 [db3,f3,g3]@9 [db3,f3,g3]@8 [c3,f3,a3]@9 [c3,f3,a3]@9 [c3,f3,a3]@8 [c3,f3,a3]@9 [e3,a3,db4]@8 [e3,a3,db4]@9 [e3,a3,db4]@8 [e3,a3,db4]@9 [d3,f3,a3]@9 [d3,f3,a3]@7]/4", // Bb Gm7b5 F A Dm
  H: "[~ [d3,f3,a3]@9 [d3,f3,a3]@8 [db3,f3,g3]@9 [db3,f3,g3]@8 [db3,f3,g3]@9 [db3,f3,g3]@9 [db3,f3,g3]@8 [db3,f3,g3]@9 [db3,f3,g3]@17 [f2,bb2,d3]@8 [f2,bb2,d3]@9 [f2,bb2,d3]@9 [f2,bb2,d3]@8 [g2,c3,e3]@7]/4", // Dm Gm7b5 Bb C
  I: "[~@2 [g2,c3,e3]@8 [g2,c3,e3]@9 [g2,c3,e3]@8 [db3,f3,g3]@9 [db3,f3,g3]@9 [db3,f3,g3]@8 [db3,f3,g3]@9 [db3,f3,g3,bb3,db4]@8 [db3,f3,g3,bb3,db4]@9 [db3,f3,g3,bb3,db4]@8 [db3,f3,g3,bb3,db4]@9]/3", // C Gm7b5
  J: "f3 c4 f3 c4 f3 c4 f3 c4", K: "d2 d3 d2 d3 d2 d3 d2 d3", L: "a2 e3 a2 e3 a2 e3 a2 e3",
  M: "bb2 f3 bb2 f3 bb2 f3 bb2 f3", N: "d4 a3 d4 a3 d4 a3 d4 a3", O: "c4 a3 c4 a3 c4 a3 c4 a3",
  P: "d4 bb3 d4 bb3 d4 bb3 d4 bb3", Q: "f4 db4 f4 db4 f4 db4 f4 db4", R: "f4 ab3 f4 ab3 f4 ab3 f4 ab3",
  S: "db4 a3 db4 a3 db4 a3 db4 a3", T: "~@2 [d3,f3,a3]!2", U: "[d3,f3,a3]!2 [d3,f3,bb3]!2",
  V: "[d3,f3,bb3]@8 ~ [d3,f3,bb3]@8 [d3,f3,a3]@8 [d3,f3,a3]@7", // Bb Dm
  W: "[~@2 [d3,f3,a3]@9 [d3,f3,a3]@8 [d3,f3,bb3]@9 [d3,f3,bb3]@9 ~ [d3,f3,bb3]@18 ~@8]/2", // Dm Bb
})).s("gm_piano").gain(0.25)

// other · piano
const piano_3 = note(`<
  ~@20 A@2 B C ~ D E F G D E F G H I J K H I J K@2 D E F G D E F G D E F G D E F G H I J K I L H K@2 ~@5
>`.pickRestart({
  A: "[~@23 f3@2 bb2@2 bb2@2 bb2@2 f3@2 ~ bb2@2 bb2@2 bb2@2 f3@2 bb2@2 bb2@2 bb2@2 ~ f3@2 bb2@2 bb2@2 bb2@2 f3@2 bb2@2 bb2@2 ~]/2",
  B: "bb2@2 f3@2 bb2@2 bb2@2 bb2@2 f3@2 bb2@2 ~ bb2@2 bb2@2 f3@2 bb2@2 bb2@2 bb2@2 g3@2 ~ f3@2",
  C: "db3@2 db3@2 g3@2 f3@2 db3@2 db3@2 ~ g3@2 f3@2 db3@2 db3@2 g3@2 f3@2 db3@2 ~ db3@2 ~@2",
  D: "f2 c3 f3@2 f2 c3 f3@2 f2 c3 f3@2 f2 c3 f3@2", E: "d2 a2 d3@2 d2 a2 d3@2 d2 a2 d3@2 d2 a2 d3@2",
  F: "a2 e3 a3@2 a2 e3 a3@2 a2 e3 a3@2 a2 e3 a3@2", G: "bb2 f3 bb3@2 bb2 f3 bb3@2 bb2 f3 bb3@2 bb2 f3 bb3@2",
  H: "[d2,d3]!4", I: "[f2,f3]!4", J: "[bb2,bb3]!4", K: "[db2,db3]!4", L: "[a2,a3]!4",
})).s("gm_piano").gain(0.25)

stack(piano, piano_2, piano_3)