{
  "schema": "s2s-bench-v1",
  "exhibit": "chopin-in-five-minutes",
  "exhibit_title": "Teaching a Music Model Chopin in Five Minutes",
  "exhibit_url": "https://research.strata2signal.com/chopin-in-five-minutes/index.html",
  "licence": "CC BY 4.0",
  "attribution": "strata→signal research, research.strata2signal.com",
  "contact": "hello@strata2signal.com",
  "kind": "data-kit-index",
  "run_id": "pd-shakedown/20260829T162506Z-stage0-r64",
  "run_window_utc": {
    "trained_utc": "2026-08-29T19:54:05Z - 2026-08-29T19:58:56Z",
    "rendered_utc": "2026-08-29 and 2026-08-30",
    "rights_read_utc": "2026-08-27T18:55Z",
    "corpus_downloaded_utc": "2026-08-29T15:10:42Z - 2026-08-29T15:12:18Z"
  },
  "subject": "ACE-Step 1.5 (MIT), fast variant, plus one LoRA adapter of 44,040,192 trainable parameters (1.81% of 2.44B)",
  "what_varies": "the adapter's strength, and nothing else: one request body, one seed, five renders at scales 0, 0.25, 0.5, 0.75 and 1.0",
  "not_a_standard": "A field guide, not a bench. One model, one method, nothing auditioned and nothing ranked. The only quantity measured (waveform distance from the 0% baseline) is named in the article as a crude ruler: it says the sound CHANGED, never that it changed toward Chopin. NO blinded listening test has been run.",
  "sanitisation": "Absolute filesystem paths and machine names projected to role names; nothing measured altered. provenance.json names every rule and the count of times each fired.",
  "self_reference": "index.json, provenance.json and index.html are not listed among the files they describe: a file cannot carry its own sha256. index.json carries provenance.json's.",
  "provenance": {
    "file": "provenance.json",
    "sha256": "48af27383a00078b71cf448e83e1e6f4055c2f6e85a274b458eb2960dc452309",
    "bytes": 8131
  },
  "file_count": 10,
  "files": [
    {
      "file": "README.md",
      "role": "What is in the kit, what was projected out of it and why, the 24-versus-19 corpus note, and how to check every fingerprint yourself.",
      "media_type": "text/markdown",
      "bytes": 4986,
      "sha256": "7ca70dd44a5774d5b42a55948746fed412b94544fe691238bea6b8b45d68781d",
      "stripped": [],
      "strip_counts": {},
      "identical_to_original": true
    },
    {
      "file": "adapter-config.json",
      "role": "The finished adapter's PEFT configuration as saved beside the weights — the independent record of what the log describes. One filesystem path projected.",
      "media_type": "application/json",
      "bytes": 1027,
      "sha256": "6012741fb89ccec6dc5390267948c2839bab54471377ff33e55f01b52dfc1144",
      "stripped": [
        "absolute filesystem paths -> role names"
      ],
      "strip_counts": {
        "path-to-role": 1
      },
      "identical_to_original": false
    },
    {
      "file": "clips.json",
      "role": "The five audio files the page plays: full sha256, byte count and adapter strength for each, plus the map from every player on the page to the file behind it. Six players, five files — the baseline carries two captions because the page plays it twice, as Listen 1 and as the 0% rung.",
      "media_type": "application/json",
      "bytes": 4921,
      "sha256": "268eda69a2aa35d5029d4f6ca28cc34434c1fc86bd3e5271a61e09ccf7cbf348",
      "stripped": [],
      "strip_counts": {},
      "identical_to_original": true
    },
    {
      "file": "corpus-manifest.tsv",
      "role": "Every recording acquired for this corpus: sha256, filename and the source URL it was fetched from, 24 rows. The run trained on 19 of them; the README says why the two numbers differ and names the held-back list as absent rather than approximating it.",
      "media_type": "text/tab-separated-values",
      "bytes": 4445,
      "sha256": "17d90f880d3916c6f84b4d1ea012b86f98085d3bbf6929d32862e49386b66eef",
      "stripped": [],
      "strip_counts": {},
      "identical_to_original": true
    },
    {
      "file": "render-request.json",
      "role": "The render request VERBATIM — the exact JSON body submitted for every one of the five clips. There is no per-clip variant: the adapter's scale is set through the service's /v1/lora/scale endpoint and this payload is submitted unchanged, which is what makes the dial the only thing that moved.",
      "media_type": "application/json",
      "bytes": 522,
      "sha256": "3d00880b9ed7e1704854da6ca3f754988bb7427f9bf13c749fafdf5fcf875023",
      "stripped": [],
      "strip_counts": {},
      "identical_to_original": true
    },
    {
      "file": "rights-chain.md",
      "role": "How the recordings were established as CC0, read at the source: the composition layer, the commissioning project's own FAQ answer quoted verbatim, the Wayback URL it was read from with its read timestamp, why the live site could not be read, and the standing rule the read produced (an aggregator's licence facet is not a licence).",
      "media_type": "text/markdown",
      "bytes": 3591,
      "sha256": "643da8cbeeec1582767068a78d7e391cec58ccc7769566e7d73a1450701ab007",
      "stripped": [],
      "strip_counts": {},
      "identical_to_original": true
    },
    {
      "file": "train.log",
      "role": "The training run's own log, start to finish: the configuration it printed for itself (rank 64, alpha 128, dropout 0.1 on q/k/v/o projections; batch 1 x 4 accumulation; lr 1e-4; seed 42; bf16; ten epochs), the ten per-epoch loss lines, and the summary carrying 4m 49s and a 5.7 GiB peak. Filesystem paths projected to role names; every number as the instrument wrote it.",
      "media_type": "text/plain",
      "bytes": 8510,
      "sha256": "dad3839cec953e8c36a199f2a8f9afee7b4d37c36c6968bc887217170d715863",
      "stripped": [
        "absolute filesystem paths -> role names"
      ],
      "strip_counts": {
        "path-to-role": 17
      },
      "identical_to_original": false
    }
  ]
}