// LON ROI CON KHOC NHE v p — Nguyen Hai Phong
// 120 bpm, 4/4, key F major. Source: midi.
// Generated by strudelify. One cycle = one bar.
// note: metre changes (1/8 at bar 1, 4/4 at bar 2) are rendered on a constant 4/4 grid of one bar per cycle
// note: Transcription provider: pdmx. https://musescore.com/score/5956112; license: https://creativecommons.org/publicdomain/zero/1.0/
// note: Full arrangement: all 45 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 · [c3,e3] is a chord.
// 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 B C D E B C D F B C D E B C D F B C D E B C D F B C D E B C D F B C D E B C D F B C D F
>`.pickRestart({
  A: "~@7 [a2,c5]", B: "[bb2,d5]@3 [a2,c5]@2 [g2,bb4]@2 [bb2,d5]", C: "[c3,e5]@3 [c3,e5]@2 [d3,f5]@2 [a2,c5]",
  D: "[bb2,d5]@3 [g2,d5]@2 [c3,e5]@2 [e2,e5]", E: "[f2,f5]@3 [g2,g5] [f2,f5]@3 [a2,c5]",
  F: "[f2,f5]@3 [g2,g5] [f2,f5]@2 ~ [a2,c5]", // F G F Am
})).s("gm_piano").gain(0.3)

stack(piano)