Festive Glockenspiel Sparkle

{
  "schema_version": 1,
  "profile_id": "glockenspiel-festive-sparkle",
  "kind": "instrument",
  "display_name": "Festive Glockenspiel Sparkle",
  "version": 1,
  "status": "testable",
  "summary": "A sparse orchestral-glockenspiel color for melody fragments, phrase markers, and widely spaced two-note chimes.",
  "used_by_current_catalog": true,
  "source_reference": "instruments/profiles/glockenspiel_festive_sparkle.profile.json",
  "renderer": {
    "available": true,
    "engine_id": "soundfont_fluidsynth",
    "plugin_or_player": "FluidSynth",
    "version": "2.6.0",
    "host": "audio_tool.py render",
    "soundfont_id": "aurelia_glockenspiel"
  },
  "input_contract": {
    "current": "MIDI performance",
    "planned_web_input": "MusicXML plus this profile",
    "deterministic_performance_required": true
  },
  "performance_rules": [
    "Limit density so high overtones do not accumulate.",
    "Avoid continuous fortissimo layers.",
    "Treat the instrument as sounding two octaves above written pitch."
  ],
  "approval": {
    "status": "pending",
    "notes": "Technically testable; dedicated listening approval is pending."
  }
}