music/proof/diffs/MPX_CH02_BATTLE_r2.diff.json
{
"sample_id": "MPX_CH02_BATTLE",
"revision": 2,
"target_card": "UNMATCHED__08_-_Airfield_action",
"generated_card": "NOCORPUS__MPX_CH02_BATTLE_r2",
"job_bpm": 103,
"scalars": [
{
"dimension": "total_length_s",
"target": 80.823,
"generated": 81.0,
"error": 0.0022,
"scale": "rel:10.0"
},
{
"dimension": "section_count",
"target": 8,
"generated": 8,
"error": 0.0,
"scale": "rel:3.0"
},
{
"dimension": "global_bpm",
"target": 103.36,
"generated": 103.36,
"error": 0.0,
"scale": "rel:40.0"
},
{
"dimension": "time_to_hook_s",
"target": 0.116,
"generated": 0.116,
"error": 0.0,
"scale": "abs:20.0"
},
{
"dimension": "time_to_full_texture_s",
"target": 12.376,
"generated": 73.909,
"error": 1.0,
"scale": "abs:25.0"
},
{
"dimension": "flow_peak_position",
"target": 0.456,
"generated": 0.9309,
"error": 0.4749,
"scale": "abs:1.0"
},
{
"dimension": "mean_lanes",
"target": 6.963,
"generated": 3.808,
"error": 0.4531,
"scale": "rel:2.0"
},
{
"dimension": "max_lanes",
"target": 9,
"generated": 9,
"error": 0.0,
"scale": "rel:3.0"
},
{
"dimension": "silence_fraction",
"target": 0.0106,
"generated": 0.0398,
"error": 0.292,
"scale": "abs:0.1"
},
{
"dimension": "drops_per_min",
"target": 6.6813,
"generated": 11.1111,
"error": 0.663,
"scale": "rel:4.0"
},
{
"dimension": "raises_per_min",
"target": 4.4542,
"generated": 9.6296,
"error": 1.0,
"scale": "rel:4.0"
},
{
"dimension": "breaks_per_min",
"target": 0.7424,
"generated": 0.7407,
"error": 0.0016,
"scale": "rel:1.0"
},
{
"dimension": "tuttis_per_min",
"target": 5.9389,
"generated": 0.0,
"error": 1.0,
"scale": "rel:3.0"
},
{
"dimension": "complexity_steps_per_min",
"target": 5.1965,
"generated": 2.963,
"error": 0.3723,
"scale": "rel:6.0"
},
{
"dimension": "boundary_step_share",
"target": 0.143,
"generated": 0.25,
"error": 0.107,
"scale": "abs:1.0"
},
{
"dimension": "dynamic_range_db",
"target": 6.71,
"generated": 20.88,
"error": 1.0,
"scale": "rel:6.0"
},
{
"dimension": "dynamics_peak_position",
"target": 0.0,
"generated": 0.9289,
"error": 0.9289,
"scale": "abs:1.0"
},
{
"dimension": "note_rate_per_s",
"target": 2.499,
"generated": 2.765,
"error": 0.1064,
"scale": "rel:1.5"
},
{
"dimension": "melodic_salience",
"target": 0.9898,
"generated": 0.9937,
"error": 0.0039,
"scale": "abs:1.0"
},
{
"dimension": "spectral_centroid_hz",
"target": 1059.7,
"generated": 824.9,
"error": 0.1957,
"scale": "rel:1200.0"
},
{
"dimension": "onset_type",
"target": "fade_in",
"generated": "fade_in",
"error": 0.0,
"scale": "cat:1.0"
}
],
"curves": {
"flow_curve": {
"available": true,
"rmse": 0.3415,
"target_mean": 0.5826,
"generated_mean": 0.2761,
"note": "energy = f(density, simultaneity, register); each already normalised to its own track's maximum, so this compares SHAPE, not loudness"
},
"simultaneity_curve": {
"available": true,
"rmse": 0.3681,
"target_mean": 0.6811,
"generated_mean": 0.3835,
"note": "lanes sounding at time t, divided by the 10-band ceiling"
},
"tempo_curve": {
"available": true,
"rmse": 0.2939,
"target_mean": 0.5739,
"generated_mean": 0.4197,
"note": "the tempo FUNCTION of section 11.3, divided by a 240 bpm ceiling"
},
"dynamics_arc": {
"available": true,
"rmse": 0.1319,
"target_mean": -0.2622,
"generated_mean": -0.3538,
"note": "the dB arc, divided by a 60 dB window"
},
"complexity_curve": {
"available": true,
"rmse": 0.2394,
"target_mean": 0.8256,
"generated_mean": 0.6923,
"note": "the per-bar complexity index of section 11.6, each normalised to its own track's maximum"
},
"register_balance": {
"available": true,
"l1_distance": 0.5923,
"note": "total absolute difference across the 10 octave bands; 0 = identical spectral weighting, 2 = disjoint"
}
},
"scalar_distance": 0.362,
"curve_distance": 0.2785,
"distance": 0.3286,
"distance_definition": "0.6 * mean scalar error + 0.4 * mean curve error. Each scalar error is the absolute miss divided by its own scale and clipped at 1, so no single runaway dimension can dominate; each curve error is an RMSE on already-unit-normalised curves. 0 is identical grammar, 1 is maximally different on every axis. It is a DISTANCE, not a quality score -- it says nothing about whether either track is good."
}