music/proof/probe_spec.json
{
"_doc": "CONTROL-SURFACE PROBE. Two opposed captions per dimension at one fixed seed; a dimension whose measured value does not separate is outside this generator's control surface. Emitted by harness/music_gen/masterpiece_proof.py.",
"revision": 0,
"emitted_at": "2026-08-06T12:48:17+00:00",
"probe_roles": {
"spectral_centroid_hz": "positive control -- brightness is the least ambiguous instruction in the set",
"global_bpm": "positive control -- tempo is also a numeric meta, so it has two routes in",
"silence_fraction": "the dimension the exploration sample could not reach",
"mean_lanes": "arrangement density -- the simultaneity curve of section 11.1",
"dynamic_range_db": "the restraint mechanism of section 4",
"time_to_full_texture_s": "section 11.4's withholding lever",
"note_rate_per_s": "written material against wash",
"tuttis_per_min": "the full-texture arrival -- unreachable in both proof revisions"
},
"jobs": [
{
"artifact_id": "PROBE_spectral_centroid_hz_low",
"chapter_id": "",
"care_tier": "standard",
"caption": "An original instrumental orchestral cue. Instrumental only, no vocals, no singing. Very dark and heavy: only low strings, low brass and bass drum, nothing above the middle of the piano, no cymbals, no high strings, no bells.",
"duration": 45,
"bpm": 100,
"keyscale": "D minor",
"timesignature": "4/4",
"instrumental": true,
"inference_steps": 60,
"guidance_scale": 7.5,
"shift": 3.0,
"seed": 8800,
"generation_tier": "region_standard",
"render_tier": "REVIEW",
"audio_format": "wav",
"probe_dimension": "spectral_centroid_hz",
"probe_pole": "low"
},
{
"artifact_id": "PROBE_spectral_centroid_hz_high",
"chapter_id": "",
"care_tier": "standard",
"caption": "An original instrumental orchestral cue. Instrumental only, no vocals, no singing. Very bright and glittering: high strings, piccolo, glockenspiel, bells and cymbals, nothing low, no bass, no low brass.",
"duration": 45,
"bpm": 100,
"keyscale": "D minor",
"timesignature": "4/4",
"instrumental": true,
"inference_steps": 60,
"guidance_scale": 7.5,
"shift": 3.0,
"seed": 8800,
"generation_tier": "region_standard",
"render_tier": "REVIEW",
"audio_format": "wav",
"probe_dimension": "spectral_centroid_hz",
"probe_pole": "high"
},
{
"artifact_id": "PROBE_global_bpm_low",
"chapter_id": "",
"care_tier": "standard",
"caption": "An original instrumental orchestral cue. Instrumental only, no vocals, no singing. Extremely slow, a funeral pace, about 50 beats per minute.",
"duration": 45,
"bpm": null,
"keyscale": "D minor",
"timesignature": "4/4",
"instrumental": true,
"inference_steps": 60,
"guidance_scale": 7.5,
"shift": 3.0,
"seed": 8800,
"generation_tier": "region_standard",
"render_tier": "REVIEW",
"audio_format": "wav",
"probe_dimension": "global_bpm",
"probe_pole": "low"
},
{
"artifact_id": "PROBE_global_bpm_high",
"chapter_id": "",
"care_tier": "standard",
"caption": "An original instrumental orchestral cue. Instrumental only, no vocals, no singing. Extremely fast and driving, about 190 beats per minute.",
"duration": 45,
"bpm": null,
"keyscale": "D minor",
"timesignature": "4/4",
"instrumental": true,
"inference_steps": 60,
"guidance_scale": 7.5,
"shift": 3.0,
"seed": 8800,
"generation_tier": "region_standard",
"render_tier": "REVIEW",
"audio_format": "wav",
"probe_dimension": "global_bpm",
"probe_pole": "high"
},
{
"artifact_id": "PROBE_silence_fraction_low",
"chapter_id": "",
"care_tier": "standard",
"caption": "An original instrumental orchestral cue. Instrumental only, no vocals, no singing. Continuous sound from the first moment to the last; it never stops, never thins, never leaves a gap.",
"duration": 45,
"bpm": 100,
"keyscale": "D minor",
"timesignature": "4/4",
"instrumental": true,
"inference_steps": 60,
"guidance_scale": 7.5,
"shift": 3.0,
"seed": 8800,
"generation_tier": "region_standard",
"render_tier": "REVIEW",
"audio_format": "wav",
"probe_dimension": "silence_fraction",
"probe_pole": "low"
},
{
"artifact_id": "PROBE_silence_fraction_high",
"chapter_id": "",
"care_tier": "standard",
"caption": "An original instrumental orchestral cue. Instrumental only, no vocals, no singing. Mostly silence. Single short gestures separated by long empty pauses of five seconds or more with absolutely nothing sounding. The silence is most of the piece.",
"duration": 45,
"bpm": 100,
"keyscale": "D minor",
"timesignature": "4/4",
"instrumental": true,
"inference_steps": 60,
"guidance_scale": 7.5,
"shift": 3.0,
"seed": 8800,
"generation_tier": "region_standard",
"render_tier": "REVIEW",
"audio_format": "wav",
"probe_dimension": "silence_fraction",
"probe_pole": "high"
},
{
"artifact_id": "PROBE_mean_lanes_low",
"chapter_id": "",
"care_tier": "standard",
"caption": "An original instrumental orchestral cue. Instrumental only, no vocals, no singing. A single unaccompanied solo instrument, alone, nothing else at any point.",
"duration": 45,
"bpm": 100,
"keyscale": "D minor",
"timesignature": "4/4",
"instrumental": true,
"inference_steps": 60,
"guidance_scale": 7.5,
"shift": 3.0,
"seed": 8800,
"generation_tier": "region_standard",
"render_tier": "REVIEW",
"audio_format": "wav",
"probe_dimension": "mean_lanes",
"probe_pole": "low"
},
{
"artifact_id": "PROBE_mean_lanes_high",
"chapter_id": "",
"care_tier": "standard",
"caption": "An original instrumental orchestral cue. Instrumental only, no vocals, no singing. Full orchestra and choir at once, every section playing together throughout, a wall of sound.",
"duration": 45,
"bpm": 100,
"keyscale": "D minor",
"timesignature": "4/4",
"instrumental": true,
"inference_steps": 60,
"guidance_scale": 7.5,
"shift": 3.0,
"seed": 8800,
"generation_tier": "region_standard",
"render_tier": "REVIEW",
"audio_format": "wav",
"probe_dimension": "mean_lanes",
"probe_pole": "high"
},
{
"artifact_id": "PROBE_dynamic_range_db_low",
"chapter_id": "",
"care_tier": "standard",
"caption": "An original instrumental orchestral cue. Instrumental only, no vocals, no singing. One unchanging volume from beginning to end, completely flat, no crescendo and no diminuendo.",
"duration": 45,
"bpm": 100,
"keyscale": "D minor",
"timesignature": "4/4",
"instrumental": true,
"inference_steps": 60,
"guidance_scale": 7.5,
"shift": 3.0,
"seed": 8800,
"generation_tier": "region_standard",
"render_tier": "REVIEW",
"audio_format": "wav",
"probe_dimension": "dynamic_range_db",
"probe_pole": "low"
},
{
"artifact_id": "PROBE_dynamic_range_db_high",
"chapter_id": "",
"care_tier": "standard",
"caption": "An original instrumental orchestral cue. Instrumental only, no vocals, no singing. Enormous dynamic swings: barely audible whispers alternating with overwhelming full-force outbursts.",
"duration": 45,
"bpm": 100,
"keyscale": "D minor",
"timesignature": "4/4",
"instrumental": true,
"inference_steps": 60,
"guidance_scale": 7.5,
"shift": 3.0,
"seed": 8800,
"generation_tier": "region_standard",
"render_tier": "REVIEW",
"audio_format": "wav",
"probe_dimension": "dynamic_range_db",
"probe_pole": "high"
},
{
"artifact_id": "PROBE_time_to_full_texture_s_low",
"chapter_id": "",
"care_tier": "standard",
"caption": "An original instrumental orchestral cue. Instrumental only, no vocals, no singing. Everything enters at once on the very first beat, the whole ensemble already playing.",
"duration": 45,
"bpm": 100,
"keyscale": "D minor",
"timesignature": "4/4",
"instrumental": true,
"inference_steps": 60,
"guidance_scale": 7.5,
"shift": 3.0,
"seed": 8800,
"generation_tier": "region_standard",
"render_tier": "REVIEW",
"audio_format": "wav",
"probe_dimension": "time_to_full_texture_s",
"probe_pole": "low"
},
{
"artifact_id": "PROBE_time_to_full_texture_s_high",
"chapter_id": "",
"care_tier": "standard",
"caption": "An original instrumental orchestral cue. Instrumental only, no vocals, no singing. One quiet instrument alone for the first forty seconds; nothing else joins until well past the halfway point.",
"duration": 45,
"bpm": 100,
"keyscale": "D minor",
"timesignature": "4/4",
"instrumental": true,
"inference_steps": 60,
"guidance_scale": 7.5,
"shift": 3.0,
"seed": 8800,
"generation_tier": "region_standard",
"render_tier": "REVIEW",
"audio_format": "wav",
"probe_dimension": "time_to_full_texture_s",
"probe_pole": "high"
},
{
"artifact_id": "PROBE_note_rate_per_s_low",
"chapter_id": "",
"care_tier": "standard",
"caption": "An original instrumental orchestral cue. Instrumental only, no vocals, no singing. Enormously long held tones, each lasting many seconds, almost no movement.",
"duration": 45,
"bpm": 100,
"keyscale": "D minor",
"timesignature": "4/4",
"instrumental": true,
"inference_steps": 60,
"guidance_scale": 7.5,
"shift": 3.0,
"seed": 8800,
"generation_tier": "region_standard",
"render_tier": "REVIEW",
"audio_format": "wav",
"probe_dimension": "note_rate_per_s",
"probe_pole": "low"
},
{
"artifact_id": "PROBE_note_rate_per_s_high",
"chapter_id": "",
"care_tier": "standard",
"caption": "An original instrumental orchestral cue. Instrumental only, no vocals, no singing. Relentless fast notes throughout, rapid runs and busy figuration, constant sixteenth-note motion.",
"duration": 45,
"bpm": 100,
"keyscale": "D minor",
"timesignature": "4/4",
"instrumental": true,
"inference_steps": 60,
"guidance_scale": 7.5,
"shift": 3.0,
"seed": 8800,
"generation_tier": "region_standard",
"render_tier": "REVIEW",
"audio_format": "wav",
"probe_dimension": "note_rate_per_s",
"probe_pole": "high"
},
{
"artifact_id": "PROBE_tuttis_per_min_low",
"chapter_id": "",
"care_tier": "standard",
"caption": "An original instrumental orchestral cue. Instrumental only, no vocals, no singing. The instruments never play together; only one or two sound at any time and the ensemble never gathers.",
"duration": 45,
"bpm": 100,
"keyscale": "D minor",
"timesignature": "4/4",
"instrumental": true,
"inference_steps": 60,
"guidance_scale": 7.5,
"shift": 3.0,
"seed": 8800,
"generation_tier": "region_standard",
"render_tier": "REVIEW",
"audio_format": "wav",
"probe_dimension": "tuttis_per_min",
"probe_pole": "low"
},
{
"artifact_id": "PROBE_tuttis_per_min_high",
"chapter_id": "",
"care_tier": "standard",
"caption": "An original instrumental orchestral cue. Instrumental only, no vocals, no singing. Repeated full-ensemble hits where absolutely every instrument slams in together, again and again throughout.",
"duration": 45,
"bpm": 100,
"keyscale": "D minor",
"timesignature": "4/4",
"instrumental": true,
"inference_steps": 60,
"guidance_scale": 7.5,
"shift": 3.0,
"seed": 8800,
"generation_tier": "region_standard",
"render_tier": "REVIEW",
"audio_format": "wav",
"probe_dimension": "tuttis_per_min",
"probe_pole": "high"
}
]
}