One score,
many hands.
The shared workspace is the compositional surface — piano roll, stem lanes, MIDI lanes, and arrangement notes synchronized in sub-second time. Every edit is entity-shaped, attributed, and queued for ledger write while the room keeps moving.
Melodic and harmonic edits land on a shared grid with per-note attribution. Voicing changes, quantize passes, and motif variants commit with reviewer gates when the room requires them.
Vocal, drum, and instrument stems sit in labeled lanes with version lineage. Replacements and crossfades propagate to twins so marketplace and playback surfaces stay current.
Markdown and structured notes anchor to bars and sections — tempo marks, key changes, and production intent travel with the score instead of living in a side channel.