- Remove the VCSL sample kit entirely (editor 351K → 141K). All voices are
synthesized; the friendly GM names now alias to the punchier 808/909 renders
(KIT_ALIAS). build.sh drops the @BUILD:samples inlining; assets/samples.json gone.
- Conventions (backward-compatible): GM note-number aliases (36=kick…), '-'/'_'
rest aliases in step patterns, Euclidean (k,n[,rot]) shorthand.
- Per-lane gain in dB (@<db> in the grammar) applied as a velocity multiplier at
schedule time — no stutter; threaded through every host's buildMeters + the
editor's lanes (knob UI comes in Phase B).
- 15/15 engine round-trip tests pass; pages console-clean.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>