| # m4a (Music4All Archive Package) |
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| This dataset repo stores the encrypted `music4all.zip` archive as split parts, plus integrity and structure manifests. |
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| ## Dataset Introduction |
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| - Related open dataset: [MTG Jamendo Dataset](https://github.com/MTG/mtg-jamendo-dataset.git) |
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| ## Repository Layout |
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| - `raw/music4all.zip.part-000` ... `raw/music4all.zip.part-005` |
| - `metadata/source_archive_sha256.txt` |
| - `metadata/source_archive_size_bytes.txt` |
| - `metadata/parts_manifest.tsv` |
| - `metadata/parts_sha256.txt` |
| - `metadata/summary.json` |
| - `metadata/zip_entries.txt` |
| - `metadata/subdir_counts.tsv` |
| - `metadata/ext_counts.tsv` |
| - `metadata/pairing_report.json` |
| - `metadata/reassemble.sh` |
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| ## Source Archive Facts |
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| - Source archive: `music4all.zip` |
| - Size: `51,727,515,191` bytes |
| - SHA256: `b4b9f3ade16c09b70f48a387dddf3cf16a4454e33a4e597055643817ce5ca973` |
| - Total ZIP entries: `218,548` |
| - Encrypted entries: `218,545` |
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| ## Internal Content Summary (from ZIP index) |
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| - `music4all/audios/`: `109,269` MP3 files (+ directory entry) |
| - `music4all/lyrics/`: `109,269` TXT lyric files (+ `readme.txt` and directory entry) |
| - Root CSV files (`6`): |
| - `id_genres.csv` |
| - `id_information.csv` |
| - `id_lang.csv` |
| - `id_metadata.csv` |
| - `id_tags.csv` |
| - `listening_history.csv` |
| - Audio/Lyric pairing check: |
| - audio ids: `109,269` |
| - lyric ids: `109,269` |
| - only-audio: `0` |
| - only-lyric: `0` |
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| ## Reassemble and Verify |
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| ```bash |
| cd metadata |
| bash reassemble.sh |
| ``` |
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| This reconstructs `../music4all.zip` and verifies SHA256 using `source_archive_sha256.txt`. |
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| ## Notes |
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| - The ZIP is password-protected. This repo preserves the encrypted source package and machine-readable manifests. |
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