chiptune-composer

Motif-first: Define a 3-6 note melodic cell. Every section should derive from or relate to this motif.
Vary repeats: Never copy a section identically more than twice in the sequence. Add ornaments, octave shifts, or rhythmic variations.
Voice independence: Melody and harmony channels should have contrary or oblique motion most of the time. Avoid parallel octaves/fifths between channels.
Register separation: Keep bass in MIDI 36-55, melody in 60-84, harmony flexible but avoid crossing the melody.
Phrase structure: Use 4-bar or 8-bar phrases (16 or 32 rows at rpb=4). End phrases with clear cadences.
Dynamic arc: Build intensity across the song. Use sparser textures for intros and bridges, denser for climaxes.
Pattern length contract: Always set patterns[].len explicitly (usually 16 or 32) and treat it as fixed. Use cross-boundary d sustains to tie into the next pattern; do not rely on implicit pattern-length inference.

star 21

Compose full-length (~1.5 minute) chiptune songs in the audio tracker's compact JSON format. Supports RPG battle themes, town music, overworld adventures, classical arrangements, ambient dungeon tracks, and more. This skill should be used when creating songs for the audio tracker, composing game music, or generating .json song files.