Versioned JSON records identity, roles, engine requirements, and musical constraints.
← All performance profiles
Instrument profileApproved
Lyrical Concert Grand
A singing grand-piano profile with phrase-shaped velocity, sustain-pedal breathing, and a centered stereo image.
EXECUTION BOUNDARY
Approved for deterministic rendering.
Definition
CompleteRenderer
AvailableThe referenced engine and instrument asset must be available to the local worker.
Listening approval
ApprovedTechnical validation does not replace a recorded human listening decision.
Web queue adapter
PlannedA future job will combine this profile with MusicXML, validate the request, and publish derived media.
CANONICAL DEFINITION
Readable by people. Stable for machines.
The database keeps searchable columns for catalog queries and preserves this JSON as the versioned rendering contract. Its SHA-256 fingerprint detects accidental changes.
SHA-256
Download JSON
0cd533c30884163097a062e5663eb55345908b573090982692bbe16a9ec9d125concert-grand-lyrical.profile.json
{
"schema_version": 1,
"profile_id": "concert-grand-lyrical",
"kind": "instrument",
"display_name": "Lyrical Concert Grand",
"version": 1,
"status": "approved",
"summary": "A singing grand-piano profile with phrase-shaped velocity, sustain-pedal breathing, and a centered stereo image.",
"used_by_current_catalog": true,
"source_reference": "audio_registry.json \u00B7 instruments/PIANO.md",
"renderer": {
"available": true,
"engine_id": "soundfont_fluidsynth",
"plugin_or_player": "FluidSynth",
"version": "2.6.0",
"host": "audio_tool.py render",
"soundfont_id": "salamander_grand"
},
"input_contract": {
"current": "MIDI performance",
"planned_web_input": "MusicXML plus this profile",
"deterministic_performance_required": true
},
"performance_rules": [
"Use velocity for timbre and render gain for level.",
"Shape pedal changes by phrase.",
"Preserve melody above accompaniment."
],
"approval": {
"status": "approved",
"notes": "The piano sound and lyrical performance direction have been accepted in prior production listening."
}
}
SOURCE OF RECORD
Profile provenance
Source reference
audio_registry.json · instruments/PIANO.mdLast synchronized
This public snapshot excludes local machine paths and secrets. Corrections can be proposed through the archive API and enter human review before the canonical record changes.
Report a profile correction →