music/bench/sa3/diffs/MPX_CH02_EXPLORE_r2_SA3.diff.json
{
"sample_id": "MPX_CH02_EXPLORE",
"revision": 2,
"target_card": "UNMATCHED__10_-_Desolation_Hong_Kong_canal_",
"generated_card": "NOCORPUS__MPX_CH02_EXPLORE_r2",
"job_bpm": 144,
"scalars": [
{
"dimension": "total_length_s",
"target": 88.346,
"generated": 88.0,
"error": 0.0039,
"scale": "rel:10.0"
},
{
"dimension": "section_count",
"target": 8,
"generated": 4,
"error": 0.5,
"scale": "rel:3.0"
},
{
"dimension": "global_bpm",
"target": 143.55,
"generated": 117.45,
"error": 0.1818,
"scale": "rel:40.0"
},
{
"dimension": "time_to_hook_s",
"target": 0.139,
"generated": 0.163,
"error": 0.0012,
"scale": "abs:20.0"
},
{
"dimension": "time_to_full_texture_s",
"target": 22.105,
"generated": 0.116,
"error": 0.8796,
"scale": "abs:25.0"
},
{
"dimension": "flow_peak_position",
"target": 0.7179,
"generated": 0.6107,
"error": 0.1072,
"scale": "abs:1.0"
},
{
"dimension": "mean_lanes",
"target": 3.686,
"generated": 4.559,
"error": 0.2368,
"scale": "rel:2.0"
},
{
"dimension": "max_lanes",
"target": 9,
"generated": 9,
"error": 0.0,
"scale": "rel:3.0"
},
{
"dimension": "silence_fraction",
"target": 0.0618,
"generated": 0.0298,
"error": 0.32,
"scale": "abs:0.1"
},
{
"dimension": "drops_per_min",
"target": 20.3744,
"generated": 10.2273,
"error": 0.498,
"scale": "rel:4.0"
},
{
"dimension": "raises_per_min",
"target": 14.9413,
"generated": 10.9091,
"error": 0.2699,
"scale": "rel:4.0"
},
{
"dimension": "breaks_per_min",
"target": 1.3583,
"generated": 2.0455,
"error": 0.5059,
"scale": "rel:1.0"
},
{
"dimension": "tuttis_per_min",
"target": 1.3583,
"generated": 0.6818,
"error": 0.2255,
"scale": "rel:3.0"
},
{
"dimension": "complexity_steps_per_min",
"target": 19.0161,
"generated": 6.8182,
"error": 0.6415,
"scale": "rel:6.0"
},
{
"dimension": "boundary_step_share",
"target": 0.321,
"generated": 0.3,
"error": 0.021,
"scale": "abs:1.0"
},
{
"dimension": "dynamic_range_db",
"target": 35.84,
"generated": 31.12,
"error": 0.1317,
"scale": "rel:6.0"
},
{
"dimension": "dynamics_peak_position",
"target": 0.0,
"generated": 0.0,
"error": 0.0,
"scale": "abs:1.0"
},
{
"dimension": "note_rate_per_s",
"target": 0.894,
"generated": 0.739,
"error": 0.1033,
"scale": "rel:1.5"
},
{
"dimension": "melodic_salience",
"target": 0.8825,
"generated": 1.0,
"error": 0.1175,
"scale": "abs:1.0"
},
{
"dimension": "spectral_centroid_hz",
"target": 629.7,
"generated": 407.1,
"error": 0.1855,
"scale": "rel:1200.0"
},
{
"dimension": "onset_type",
"target": "fade_in",
"generated": "cold_statement",
"error": 1.0,
"scale": "cat:1.0"
}
],
"curves": {
"flow_curve": {
"available": true,
"rmse": 0.2351,
"target_mean": 0.3114,
"generated_mean": 0.3514,
"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": 0.3596,
"target_mean": 0.3515,
"generated_mean": 0.4413,
"note": "lanes sounding at time t, divided by the 10-band ceiling"
},
"tempo_curve": {
"available": true,
"rmse": 0.2844,
"target_mean": 0.6452,
"generated_mean": 0.6402,
"note": "the tempo FUNCTION of section 11.3, divided by a 240 bpm ceiling"
},
"dynamics_arc": {
"available": true,
"rmse": 0.1956,
"target_mean": -0.4349,
"generated_mean": -0.4029,
"note": "the dB arc, divided by a 60 dB window"
},
"complexity_curve": {
"available": true,
"rmse": 0.2931,
"target_mean": 0.4879,
"generated_mean": 0.5456,
"note": "the per-bar complexity index of section 11.6, each normalised to its own track's maximum"
},
"register_balance": {
"available": true,
"l1_distance": 0.6777,
"note": "total absolute difference across the 10 octave bands; 0 = identical spectral weighting, 2 = disjoint"
}
},
"scalar_distance": 0.2824,
"curve_distance": 0.2844,
"distance": 0.2832,
"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."
}