// Thick as a Brick — Jethro Tull
// 184 bpm, 12/8, key F major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: metre changes (12/8 at bar 1, 6/8 at bar 5, 12/8 at bar 6, 6/8 at bar 9, ...) are rendered on a constant 12/8 grid of one bar per cycle
// note: duplicate parts dropped: ch 2 "Vocal II" string ensemble 1 (copy of ch 1 "Vocal I" string ensemble 1); ch 4 "Flute II" flute (copy of ch 3 "Flute I" flute); ch 6 "Acoustic II" acoustic guitar steel (copy of ch 5 "Acoustic I" acoustic guitar steel)
// note: Full arrangement: all 84 bars on a 24-step grid, each part at one level. Source detail keeps the original performance.
setcpm(184/6)

// 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.

// other · flute · "Flute I"
const flute = note(`<
  ~@5 A B C ~ D E ~ F B G ~ D H I J I J I J K ~ D E ~@16 I J I J I J K ~ D E L M N ~@9 D E L O N ~@9 P@2 Q R
>`.pickRestart({
  A: "~@12 f5@3 ~@3 g5@2 ~@2 a5 ~", B: "bb5@2 a5 ~ g5 ~ f5@3 ~ c5@2 f5@5 ~ g5@2 ~@2 a5 ~",
  C: "bb5@2 a5 ~ bb5 ~ c6@5 ~@13", D: "f5@3 ~@3 g5@2 ~@2 a5 ~ bb5@2 a5 ~ g5 ~ f5@3 ~ c5@2",
  E: "f5@5 ~ g5@2 ~@2 a5 ~ bb5@2 a5 ~ bb5 ~ c6@5 ~", F: "~@12 f5@3 ~ f5 ~ g5@2 ~@2 a5 ~",
  G: "bb5@2 a5@2 bb5 ~ c6@5 ~@13", H: "f5@5 ~ g5@2 ~@2 a5 ~ bb5@2 a5@2 bb5@2 c6@5 ~",
  I: "f5@7 ~ d5@2 f5@2 g5@6 ~@4 a5 g5", J: "f5@2 ~@2 c5 ~ f5@2 ~@2 c5 ~ f5@2 g5 ~ f5@5 ~@3",
  K: "c5@2 ~@2 g4 ~ c5@2 ~@2 g4 ~ c5@2 d5@2 c5@6 ~@2", L: "eb6@14 d6 ~ c6 ~ bb5 ~ ab5@2 g5@2",
  M: "f5@14 eb5 ~ c5 ~ bb4@2 ab4@2 g4 ~", N: "f4@11 ~@13", O: "f5@14 eb5 ~ c5 ~ bb4 ~ ab4@2 g4@2", P: "[eb6@47 ~]/2",
  Q: "~@12 c6 ~ c6 ~ bb5 ~ ab5 ~ g5@4", R: "f5@23 ~",
})).s("gm_flute").gain(0.48).pan(0.1)

// chords · acoustic guitar steel · "Acoustic I"
const acoustic_guitar_steel = note(`<
  A B A B C D E F G A@2 C D E F G A@2 H I H I H I J K A@4 C D E F G A@2 C D E F G A@2 H I H I H I J K A@2 L@2 M N O P Q
  R S T U V A@2 L@14 W X
>`.pickRestart({
  A: "~@2 f3@2 c4@2 ~@2 f3@2 c4@2 c3@2 ~@2 f3@2 [d3,f3,bb3]@2 [d3,f3,bb3,d4] ~ [d3,f3,bb3]@2, c3@3 e3@3 ~ d3@2 ~@3", // Bb
  B: "~ f3 eb4 ~ f3 eb4 c3 ~ bb3 ~ f3 bb3, c3@3 g3@3 ~ f3@2 eb3@3",
  C: "[f3,a3,c4,f4]@3 ~ [f3,a3,c4,f4]@2 [f3,a3,c4,f4]@2 [f3,a3,c4,f4]@2 [f3,a3,c4,f4]@2 [eb3,g3,c4,eb4]@3 ~ [eb3,g3,c4,eb4]@2 [eb3,g3,c4,eb4]@2 [eb3,g3,c4,eb4]@2 [eb3,g3,c4,eb4]@2", // F Cm
  D: "c4 d4 [f3,bb3,d4] [d3,f3,bb3,d4]!3 ~ f3 c4 ~ f3 c4, ~@2 c3 e3", // Bb
  E: "c3@2 ~@2 f3@2 [d3,f3,bb3]@2 [d3,f3,bb3,d4] ~ [d3,f3,bb3]@2 ~@2 f3@2 c4@2 ~@2 f3@2 c4@2, ~ d3@2 ~@3 c3@3 e3@3", // Bb
  F: "c3@2 ~@2 f3@2 [d3,f3,bb3]@2 [d3,f3,bb3,d4] ~ [d3,f3,bb3]@2 [f3,a3,c4,f4]@3 ~ [f3,a3,c4,f4]@2 [f3,a3,c4,f4]@2 [f3,a3,c4,f4]@2 [f3,a3,c4,f4]@2, ~ d3@2 ~@9", // Bb F
  G: "[eb3,g3,c4,eb4]@3 ~ [eb3,g3,c4,eb4]@2 [eb3,g3,c4,eb4]@2 [eb3,g3,c4,eb4]@2 [eb3,g3,c4,eb4]@2 c4@2 d4@2 [f3,bb3,d4]@2 [d3,f3,bb3,d4]@2 [d3,f3,bb3,d4]@2 [d3,f3,bb3,d4]@2", // Cm Bb
  H: "[f3,bb3,d4]@3 ~ [f3,bb3,d4]@2 [f3,bb3,d4]@2 [f3,bb3,d4]@2 [f3,bb3,d4]@2 [g3,c4,e4]@3 ~ [g3,c4,e4]@2 [g3,c4,e4]@2 [g3,c4,e4]@2 [g3,c4,e4]@2", // Bb C
  I: "[f3,a3,c4]@2 [f3,a3,c4]@2 [f3,g3,c4]@2 [f3,a3,c4]@2 [f3,a3,c4]@2 [f3,g3,c4]@2 [f3,a3,c4]@2 [f3,bb3,c4]@2 [f3,a3,c4]@3 ~ [f3,a3,c4]@2 [f3,a3,c4]@2", // F Fsus2 F Fsus2 F Fsus4 F
  J: "[c3,e3,g3]@2 [c3,e3,g3]@2 [c3,d3,g3]@2 [c3,e3,g3]@2 [c3,e3,g3]@2 [c3,d3,g3]@2 [c3,e3,g3]@2 [c3,f3,g3]@2 [c3,e3,g3]@3 ~ [c3,e3,g3]@2 [c3,e3,g3]@2", // C Csus2 C Csus2 C Csus4 C
  K: "[c3,d3,g3]@2 [c3,e3,g3]@3 ~ [c3,e3,g3]@2 [c3,e3,g3]@2 [c3,e3,g3]@2 [c3,e3,g3]@3 ~ [c3,e3,g3]@2 [c3,e3,g3]@2 [c3,e3,g3]@3 ~", // Csus2 C
  L: "~ f3 eb4 ~ f3 eb4 c3 ~ bb3 [eb4,f4,ab4] [eb4,f4,ab4,c5] [eb4,f4,ab4], c3@3 g3@3 ~ f3@2 ~@3", // Fm7
  M: "[f2,c3,f3,a3]@6 [c3,f3,a3]@2 [c3,f3,a3]!4", N: "[c3,eb3,g3,c4]@6 d4 ~ [eb3,g3,c4]!4, ~@3 [c3,g3] ~@2, ~@7 eb4@5",
  O: "[eb2,bb2,eb3,g3]@6 [bb2,eb3,g3]@2 [bb2,eb3,g3]!4", P: "[g2,bb2,d3,g3]@2 [bb2,d3,g3]!4 f3 g3 c3 d3 g2 c3",
  Q: "[bb2,d3,f3,bb3]@2 [d3,f3,bb3]!4 [d3,f3,bb3]@2 [d3,f3,bb3]!4", // Bb
  R: "[c3,f3,a3]@2 [c3,f3,g3] [c3,f3,a3]@2 [c3,f3,g3] [c3,f3,a3]@2 [c3,f3,g3] [c3,f3,a3]@2 [c3,f3,g3]", // F Csus4 F Csus4 F Csus4 F Csus4
  S: "[d3,f3,a3]@2 [d3,f3,g3] [d3,f3,a3]@2 [d3,f3,g3] [d3,f3,a3]@2 [d3,f3,g3] [d3,f3,a3]@2 [d3,f3,g3]", // Dm G7 Dm G7 Dm G7 Dm G7
  T: "[a2,e3,a3,db4]@2 [e3,a3,bb3] [e3,a3,db4]@2 [e3,a3,bb3] [a2,e3,a3,db4]@2 [e3,a3,db4]!2 [e3,a3,db4]@2", // A
  U: "[f3,bb3,d4]@6 [f3,bb3,d4]@2 [f3,bb3,d4]!2 [f3,bb3,d4]@2, bb2@2 ~", // Bb
  V: "[g3,c4,f4]!3 [g3,c4,d4] [g3,c4,e4]!2 [g3,c4,e4]@6", // Csus4 Gsus4 C
  W: "[eb4,f4,ab4,c5]@2 [eb4,f4,ab4,c5]!4 [eb4,f4,ab4,c5]@2 [eb4,f4,ab4,c5]!4", // Fm7
  X: "[a3,c4,f4]@2 [a3,c4,f4]!4 [g3,c4,f4] [a3,c4,f4]@2 [a3,c4,f4]!3", // F Csus4 F
})).s("gm_acoustic_guitar_steel").gain(0.4).pan(0.8)

// other · electric guitar clean · "Guitar II"
const electric_guitar_clean = note(`<
  ~@9 A B ~@17 B@2 ~ C D E ~ B@2 ~ C D E ~ B@2 F G F G F G H ~@3 I J K ~@11 I@2 L ~@13
>`.pickRestart({
  A: "~@2 c3@3 ~@19", B: "a4@5 ~ g4@5 ~ f4@2 d4@2 d4@2 d4@5 ~", C: "~@12 a4@5 ~ g4@5 ~",
  D: "f4@2 d4@2 d4@2 d4@5 ~ a4@5 ~ g4@5 ~", E: "f4@2 d4@2 d4@2 d4@5 ~@13", F: "d4@11 ~ e4@11 ~",
  G: "c4@3 ~ bb3@2 c4@3 ~ bb3@2 c4@2 d4@2 c4@7 ~", H: "g3@3 ~ e3@2 g3@3 ~ e3@2 g3@2 a3@2 g3@7 ~",
  I: "c5@7 bb4 c5 db5 ~@2", J: "c5@7 bb4 c5 bb4 ~@2", K: "a4@11 ~@13", L: "c5@11 ~@13",
})).s("gm_electric_guitar_clean").gain(0.48).pan(0.8)

// bass · electric bass pick · "Bass"
const bass = note("<~@9 A B ~@17 B@2 ~ C D E ~ B@2 ~ C D E ~ B@2 F G F G F G H I ~@32>".pickRestart({
  A: "~@2 f2@2 ~@8 d2@3 ~ bb1@2 bb1@5 ~", B: "f2@5 ~ e2@5 ~ d2@3 ~ bb1@2 bb1@5 ~", C: "~@12 f2@5 ~ e2@5 ~",
  D: "d2@3 ~ bb1@2 bb1@5 ~ f2@5 ~ e2@5 ~", E: "d2@3 ~ bb1@2 bb1@5 ~@13", F: "bb1@3 ~@5 bb1@3 ~ c2@3 ~@5 c2@3 ~",
  G: "f2@3 ~ c2@2 f2@3 ~ c2@2 f2@2 g2@2 f2@7 ~", H: "c2@3 ~ g1@2 c2@3 ~ g1@2 c2@2 d2@2 c2@7 ~", I: "c2@11 ~@13",
})).s("gm_electric_bass_pick").gain(0.4).pan(0.6)

// chords · drawbar organ · "Organ I"
const drawbar_organ = note("<~@56 A B C D E F G H I ~@19>".pickRestart({
  A: "[c4,f4,a4]@23 ~", B: "[c4,eb4,g4]@23 ~", C: "[bb3,eb4,g4]@23 ~", D: "[bb3,d4,g4]@23 ~", E: "[d4,f4,bb4]@23 ~",
  F: "[c4,f4,a4]@2 [c4,f4,g4] [c4,f4,a4]@2 [c4,f4,g4] [c4,f4,a4]@2 [c4,f4,g4] [c4,f4,a4]@2 [c4,f4,g4]", // F Csus4 F Csus4 F Csus4 F Csus4
  G: "[d4,f4,a4]@2 [d4,f4,g4] [d4,f4,a4]@2 [d4,f4,g4] [d4,f4,a4]@2 [d4,f4,g4] [d4,f4,a4]@2 [d4,f4,g4]", // Dm G7 Dm G7 Dm G7 Dm G7
  H: "[e4,a4,db5]@2 [e4,a4,bb4] [e4,a4,db5]@2 [e4,a4,bb4] [e4,a4,db5]@6", I: "[f4,bb4,d5]@23 ~",
})).s("gm_drawbar_organ").gain(0.4)

// chords · piano · "Piano I"
const piano = note("<~@9 A B ~@17 B@2 ~ C D E ~ B@2 ~ C D E ~ B@2 F G F G F G H I ~@32>".pickRestart({
  A: "~@2 [c4,f4,a4]@3 ~@19", B: "a5 f5 c5 g5 e5 c5 f5 d5 bb4 [d4,f4,bb4]@2 ~", C: "~@6 a5 f5 c5 g5 e5 c5",
  D: "f5 d5 bb4 [d4,f4,bb4]@2 ~ a5 f5 c5 g5 e5 c5", E: "f5 d5 bb4 [d4,f4,bb4]@2 ~@7",
  F: "[bb3,d4,f4]@3 ~@5 [bb3,d4,f4]@3 ~ [c4,e4,g4]@3 ~@5 [c4,e4,g4]@3 ~", // Bb C
  G: "[c4,f4,a4]@3 ~ [c4,f4,g4]@2 [c4,f4,a4]@3 ~ [c4,f4,g4]@2 [c4,f4,a4]@2 [c4,f4,bb4]@2 [c4,f4,a4]@7 ~", // F Csus4 F Csus4 F Fsus4 F
  H: "[c4,e4,g4]@3 ~ [c4,d4,g4]@2 [c4,e4,g4]@3 ~ [c4,d4,g4]@2 [c4,e4,g4]@2 [c4,f4,g4]@2 [c4,e4,g4]@7 ~", // C Csus2 C Csus2 C Csus4 C
  I: "[c4,d4,g4]@2 c4@3 ~ c4@5 ~@13, ~@2 [e4,g4]@9 ~@13", // Csus2 Em
})).s("gm_piano").gain(0.4).pan(0.4)

// other · piano · "Piano II"
const piano_2 = note("<~@10 A ~@17 A@2 ~ B C D ~ A@2 ~ B C D ~ A@2 E F E F E F G H ~@32>".pickRestart({
  A: "f3@5 ~ e3@5 ~ d3@3 ~ bb2@2 bb2@5 ~", B: "~@12 f3@5 ~ e3@5 ~", C: "d3@3 ~ bb2@2 bb2@5 ~ f3@5 ~ e3@5 ~",
  D: "d3@3 ~ bb2@2 bb2@5 ~@13", E: "bb2@3 ~@5 bb2@3 ~ c3@3 ~@5 c3@3 ~", F: "f3@3 ~ c3@2 f3@3 ~ c3@2 f3@2 g3@2 f3@7 ~",
  G: "c3@3 ~ g2@2 c3@3 ~ g2@2 c3@2 d3@2 c3@7 ~", H: "c3@11 ~@13",
})).s("gm_piano").gain(0.32).pan(0.4)

// other · glockenspiel
const glockenspiel = note("<~@56 A B@3 A C@2 D E ~ F G ~@16>".pickRestart({
  A: "f6 ~@11", B: "g6 ~@11", C: "a6@4 g6@2 a6@4 g6@2 a6@4 g6@2 a6@3 ~ g6@2", D: "db7@3 ~ a6@2 db7@3 ~ a6@2 db7@11 ~",
  E: "d7 ~@11", F: "f6@2 ~@4 g6@2 ~@2 a6@2 bb6@2 a6@2 g6@2 f6@3 ~ c6@2", G: "f6 ~@2 g6 ~ a6 bb6 a6 bb6 c7 ~@2",
})).s("gm_glockenspiel").gain(0.56)

// drums · kick
const kick = s("bd").struct("<~@9 A B ~@33 C D E D E D F G ~@32>".pickRestart({
  A: "~@6 x ~ x!2 ~@2", B: "x ~@2 x ~@2 x ~ x!2 ~@2", C: "x ~ x ~@2 x", D: "x ~ x ~ x ~@4 x!2 ~", E: "x!3 ~@2 x",
  F: "x!2 ~", G: "x",
})).gain(0.48)

// drums · snare
const snare = s("sd").struct("<~@9 A ~@34 B@2 C B C D B ~@33>".pickRestart({
  A: "~ x ~@10", B: "~ x", C: "~ x ~ x ~ x!2 ~@5", D: "~ x ~ x ~@2",
})).gain(0.48)

// drums · hihat
const hihat = s("hh").struct("<~@9 A B ~@34 C ~ C ~ C@2 ~@33>".pickRestart({
  A: "~@6 x ~ x!2 ~@2", B: "x!8 ~ x ~@2", C: "~ x!5",
})).gain(0.48)

// drums · open hat
const open_hat = s("oh").struct("<~@50 [~@3 x] x ~@32>").gain(0.56)

// drums · ride
const ride = s("rd").struct(`<
  ~@9 A B ~@17 C@2 ~ D E F ~ C@2 ~ D E F ~ C@2 G H I ~ I ~ H ~@3 J@2 H ~@4 K@2 L H ~@19
>`.pickRestart({
  A: "~@6 x ~ x!2 ~@2", B: "x ~@2 x ~@2 x ~ x!2 ~@2", C: "x!10 ~@2", D: "~@6 x!6", E: "x!4 ~@2 x!6", F: "x!4 ~@8",
  G: "~ x!5", H: "x", I: "x!3 ~ x!2", J: "x ~@6 x!3 ~@2", K: "x!12", L: "x!7 ~@5",
})).gain(0.4)

// drums · crash
const crash = s("cr").struct("<~@44 x ~ [~ x] ~ [~ x]!3 ~@33>").gain(0.48)

// drums · bongos
const bongos = s("bongo:4").struct("<~@47 x ~ x ~@34>").gain(1.26)

stack(
  flute, acoustic_guitar_steel, electric_guitar_clean, bass, drawbar_organ, piano, piano_2, glockenspiel, kick, snare,
  hihat, open_hat, ride, crash, bongos
)