// o come all ye faithful — John Francis Wade
// 120 bpm, 4/4, key G major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: metre changes (1/4 at bar 1, 4/4 at bar 2) are rendered on a constant 4/4 grid of one bar per cycle
// note: ch 4 "Bass" named as a bass, played on electric bass finger (its piano patch is not one)
// note: Transcription provider: pdmx. https://musescore.com/score/444056; license: https://creativecommons.org/publicdomain/zero/1.0/
// note: Full arrangement: all 21 bars on a 16-step grid, each part at one level. Source detail keeps the original performance.
setcpm(120/4)

// Notation: c3@3 lasts 3 steps · ~ is a rest.
// A part's distinct bars are riffs (A, B, C...) played in order: edit a riff to change every repeat.

// other · piano · "Alto"
const piano = note("<A B C D B E F G H I J K L M N O P Q R S T>".pickRestart({
  A: "~@3 d4", B: "d4@2 d4 b3", C: "d4!2", D: "d4!3 e4", E: "b3 c#4 d4 c#4", F: "d4@2 d4!2", G: "d4@4 c#4@3 d4",
  H: "d4", I: "d4@4 e4 f#4 g4@2", J: "e4 f#4 g4@2", K: "d4!2 e4!2", L: "d4@2 d4 g4", M: "g4 f#4 g4 a4", N: "g4@2 d4!2",
  O: "d4!3 f#4", P: "g4@2 f#4 g4", Q: "e4 f#4 g4@2 d4@2 d4 c#4", R: "d4@2 d4 e4", S: "d4@4 c4@3 b3", T: "b3",
})).s("gm_piano").gain(0.41).pan(0.9)

// other · piano · "Tenor"
const piano_2 = note("<A B C D E F G H I J K L M ~ N O P Q R S T>".pickRestart({
  A: "~@3 b3", B: "b3@2 g3!2", C: "f#3 a3", D: "g3 a3 g3!2", E: "g3@2 f#3 g3", F: "g3@2 a3!2", G: "a3 g3 f#3 e3",
  H: "a3@4 g3@3 f#3", I: "f#3", J: "b3@2 c4 d4", K: "c4 d4", L: "d4 g3 b3 c4", M: "a3@3 g3 f#3@2 ~@2", N: "~@3 g3",
  O: "g3 f#3 g3 a3", P: "g3@2 d3 d4", Q: "c4 d4 a3!2", R: "a3 g3", S: "g3@4 f#3@3 g3", T: "g3",
})).s("gm_piano").gain(0.34).pan(0.7)

// bass · electric bass finger · "Bass"
const bass = note("<A B C D E F G H I J K L M ~@3 N O P Q R>".pickRestart({
  A: "~@3 g2", B: "g2@2 b2 g2", C: "d3 f#3", D: "g3 f#3 g3 c3", E: "d3@2 d3 e3", F: "e3@2 d3 a2", G: "d3 b2 f#2 g2",
  H: "a2@4 a2@3 d3", I: "d3", J: "b3@2 a3 g3", K: "a3 g3", L: "f#3 g3 e3 c3", M: "d3@2 d3 ~", N: "~@3 g3",
  O: "a3 g3 f#3 e3", P: "d3 c3 b2 c3", Q: "d3@4 d3@3 g2", R: "g2",
})).s("gm_electric_bass_finger").gain(0.48).pan(0.4)

stack(piano, piano_2, bass)