{
  "round": 3,
  "experiment": "mnml-v2 experiment (c) — the coherence CONTROL (D-20260831-17). One artist, same pipeline, same recipe, same era/production/licence tier as mnml v1. Only corpus coherence moved.",
  "adapter_run": "20260831T193904Z-fmctl0-r64",
  "shipped_checkpoint": "epoch_10_loss_0.7659 (best loss among saved; final is byte-identical)",
  "clips": [
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      "ok": true,
      "round": 3,
      "arm": "base",
      "caption_letter": "C",
      "caption": "minimal techno, Schwerelos (original mix)",
      "adapter": null,
      "adapter_sha256": null,
      "adapter_checkpoint": null,
      "adapter_scale": null,
      "adapter_run": null,
      "seed": 777,
      "seed_used": 777,
      "lyrics": "[Instrumental]",
      "bpm": 128,
      "keyscale": "A minor",
      "timesignature": "4",
      "duration": 60.0,
      "inference_steps": 8,
      "shift": 1.0,
      "guidance_scale": 1.0,
      "config_path": "acestep-v15-turbo",
      "enable_normalization": true,
      "normalization_db": -1.0,
      "inference_steps_requested": 8,
      "inference_steps_effective": 8.0,
      "sample_rate": 48000,
      "output": "music/out/fm-control/round-3/base__C__seed777.wav",
      "output_sha256": "e71b8c65156cb10c4e64c55dc50cac56e8d0bf8925a8c2839c54ca7338da137c",
      "engine_time_costs": {
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        "dit_diffusion_time_cost": 0.4948689937591553,
        "dit_diffusion_per_step_time_cost": 0.06185862421989441,
        "dit_total_time_cost": 1.8758366107940674,
        "dit_offload_time_cost": 6.888595104217529,
        "dit_vae_decode_time_cost": 1.3614964485168457,
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      "wall_seconds": 10.92,
      "vram_peak_reserved_gib": 4.656,
      "model_load_seconds": 1.84,
      "fresh_process": true,
      "rendered_at_utc": "2026-08-31T19:48:05Z",
      "loudness": {
        "input_i_lufs": -14.01,
        "input_lra": 3.0,
        "input_tp_dbtp": -1.0,
        "input_thresh_lufs": -24.12
      },
      "bytes": 11520078
    },
    {
      "clip_id": "base__D__seed7777",
      "ok": true,
      "round": 3,
      "arm": "base",
      "caption_letter": "D",
      "caption": "minimal techno, Basement Loop 7",
      "adapter": null,
      "adapter_sha256": null,
      "adapter_checkpoint": null,
      "adapter_scale": null,
      "adapter_run": null,
      "seed": 7777,
      "seed_used": 7777,
      "lyrics": "[Instrumental]",
      "bpm": 128,
      "keyscale": "A minor",
      "timesignature": "4",
      "duration": 60.0,
      "inference_steps": 8,
      "shift": 1.0,
      "guidance_scale": 1.0,
      "config_path": "acestep-v15-turbo",
      "enable_normalization": true,
      "normalization_db": -1.0,
      "inference_steps_requested": 8,
      "inference_steps_effective": 8.0,
      "sample_rate": 48000,
      "output": "music/out/fm-control/round-3/base__D__seed7777.wav",
      "output_sha256": "5889ca518f8b726e74176d831975eff712f05b878f351d74b70a13a8268068ef",
      "engine_time_costs": {
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        "dit_diffusion_time_cost": 0.5009284019470215,
        "dit_diffusion_per_step_time_cost": 0.06261605024337769,
        "dit_total_time_cost": 1.8706555366516113,
        "dit_offload_time_cost": 6.97809910774231,
        "dit_vae_decode_time_cost": 1.3505744934082031,
        "pipeline_total_time": 1.8706555366516113
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      "wall_seconds": 11.01,
      "vram_peak_reserved_gib": 4.656,
      "model_load_seconds": 1.86,
      "fresh_process": true,
      "rendered_at_utc": "2026-08-31T19:48:47Z",
      "loudness": {
        "input_i_lufs": -18.25,
        "input_lra": 7.4,
        "input_tp_dbtp": -0.96,
        "input_thresh_lufs": -28.73
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      "bytes": 11520078
    },
    {
      "clip_id": "fm-control-1.0__C__seed777",
      "ok": true,
      "round": 3,
      "arm": "fm-control-1.0",
      "caption_letter": "C",
      "caption": "fm-control, minimal techno, Schwerelos (original mix)",
      "adapter": "music/adapters/fm-control/20260831T193904Z-fmctl0-r64/final",
      "adapter_sha256": "7fe115ac3b4b444f8e61a0b34564f32d91c7401c72473075c42b867f1ddb3eb8",
      "adapter_checkpoint": "final == epoch_10_loss_0.7659",
      "adapter_scale": 1.0,
      "adapter_run": "music/adapters/fm-control/20260831T193904Z-fmctl0-r64",
      "seed": 777,
      "seed_used": 777,
      "lyrics": "[Instrumental]",
      "bpm": 128,
      "keyscale": "A minor",
      "timesignature": "4",
      "duration": 60.0,
      "inference_steps": 8,
      "shift": 1.0,
      "guidance_scale": 1.0,
      "config_path": "acestep-v15-turbo",
      "enable_normalization": true,
      "normalization_db": -1.0,
      "inference_steps_requested": 8,
      "inference_steps_effective": 8.0,
      "sample_rate": 48000,
      "output": "music/out/fm-control/round-3/fm-control-1.0__C__seed777.wav",
      "output_sha256": "5db77e0345b032c5c8c5dcf83c4449b4383748d3c8c3121e077ff4d906533cbd",
      "engine_time_costs": {
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        "dit_diffusion_time_cost": 0.6301405429840088,
        "dit_diffusion_per_step_time_cost": 0.0787675678730011,
        "dit_total_time_cost": 2.0159997940063477,
        "dit_offload_time_cost": 6.5831217765808105,
        "dit_vae_decode_time_cost": 1.3667678833007812,
        "pipeline_total_time": 2.0159997940063477
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      "wall_seconds": 10.97,
      "vram_peak_reserved_gib": 4.785,
      "model_load_seconds": 1.89,
      "fresh_process": true,
      "rendered_at_utc": "2026-08-31T19:48:27Z",
      "loudness": {
        "input_i_lufs": -14.32,
        "input_lra": 2.9,
        "input_tp_dbtp": -1.0,
        "input_thresh_lufs": -24.4
      },
      "bytes": 11520078
    },
    {
      "clip_id": "fm-control-1.0__D__seed7777",
      "ok": true,
      "round": 3,
      "arm": "fm-control-1.0",
      "caption_letter": "D",
      "caption": "fm-control, minimal techno, Basement Loop 7",
      "adapter": "music/adapters/fm-control/20260831T193904Z-fmctl0-r64/final",
      "adapter_sha256": "7fe115ac3b4b444f8e61a0b34564f32d91c7401c72473075c42b867f1ddb3eb8",
      "adapter_checkpoint": "final == epoch_10_loss_0.7659",
      "adapter_scale": 1.0,
      "adapter_run": "music/adapters/fm-control/20260831T193904Z-fmctl0-r64",
      "seed": 7777,
      "seed_used": 7777,
      "lyrics": "[Instrumental]",
      "bpm": 128,
      "keyscale": "A minor",
      "timesignature": "4",
      "duration": 60.0,
      "inference_steps": 8,
      "shift": 1.0,
      "guidance_scale": 1.0,
      "config_path": "acestep-v15-turbo",
      "enable_normalization": true,
      "normalization_db": -1.0,
      "inference_steps_requested": 8,
      "inference_steps_effective": 8.0,
      "sample_rate": 48000,
      "output": "music/out/fm-control/round-3/fm-control-1.0__D__seed7777.wav",
      "output_sha256": "f0ebb8d258039c5c233b9879ef4e52af948736b92a4bbd5044fd69730c895594",
      "engine_time_costs": {
        "dit_encoder_time_cost": 0.019432783126831055,
        "dit_diffusion_time_cost": 0.6298067569732666,
        "dit_diffusion_per_step_time_cost": 0.07872584462165833,
        "dit_total_time_cost": 2.026036500930786,
        "dit_offload_time_cost": 6.565258979797363,
        "dit_vae_decode_time_cost": 1.3767969608306885,
        "pipeline_total_time": 2.026036500930786
      },
      "wall_seconds": 10.93,
      "vram_peak_reserved_gib": 4.789,
      "model_load_seconds": 1.82,
      "fresh_process": true,
      "rendered_at_utc": "2026-08-31T19:49:09Z",
      "loudness": {
        "input_i_lufs": -16.34,
        "input_lra": 7.1,
        "input_tp_dbtp": -0.96,
        "input_thresh_lufs": -26.67
      },
      "bytes": 11520078
    }
  ],
  "pair_checks": [
    {
      "caption_letter": "C",
      "seed": 777,
      "base_clip": "base__C__seed777",
      "base_sha256": "e71b8c65156cb10c4e64c55dc50cac56e8d0bf8925a8c2839c54ca7338da137c",
      "adapter_clip": "fm-control-1.0__C__seed777",
      "adapter_sha256": "5db77e0345b032c5c8c5dcf83c4449b4383748d3c8c3121e077ff4d906533cbd",
      "byte_distinct": true,
      "verdict": "PASS — the adapter changed the audio"
    },
    {
      "caption_letter": "D",
      "seed": 7777,
      "base_clip": "base__D__seed7777",
      "base_sha256": "5889ca518f8b726e74176d831975eff712f05b878f351d74b70a13a8268068ef",
      "adapter_clip": "fm-control-1.0__D__seed7777",
      "adapter_sha256": "f0ebb8d258039c5c233b9879ef4e52af948736b92a4bbd5044fd69730c895594",
      "byte_distinct": true,
      "verdict": "PASS — the adapter changed the audio"
    }
  ],
  "cross_round_determinism": [
    {
      "clip": "base__C__seed777",
      "round2_sha256": "e71b8c65156cb10c4e64c55dc50cac56e8d0bf8925a8c2839c54ca7338da137c",
      "round3_sha256": "e71b8c65156cb10c4e64c55dc50cac56e8d0bf8925a8c2839c54ca7338da137c",
      "byte_identical": true,
      "caption_same": true,
      "seed_same": true,
      "verdict": "PASS — reproduced byte-for-byte across rounds; the render path is deterministic, which is what licences the byte-distinct test"
    },
    {
      "clip": "base__D__seed7777",
      "round2_sha256": "5889ca518f8b726e74176d831975eff712f05b878f351d74b70a13a8268068ef",
      "round3_sha256": "5889ca518f8b726e74176d831975eff712f05b878f351d74b70a13a8268068ef",
      "byte_identical": true,
      "caption_same": true,
      "seed_same": true,
      "verdict": "PASS — reproduced byte-for-byte across rounds; the render path is deterministic, which is what licences the byte-distinct test"
    }
  ]
}