README.md

m4a (Music4All Archive Package)

This dataset repo stores the encrypted music4all.zip archive as split parts, plus integrity and structure manifests.

Dataset Introduction

• Related open dataset: MTG Jamendo Dataset

Repository Layout

• 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

Source Archive Facts

• Source archive: music4all.zip
• Size: 51,727,515,191 bytes
• SHA256: b4b9f3ade16c09b70f48a387dddf3cf16a4454e33a4e597055643817ce5ca973
• Total ZIP entries: 218,548
• Encrypted entries: 218,545

Internal Content Summary (from ZIP index)

• 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

Reassemble and Verify

cd metadata
bash reassemble.sh

This reconstructs ../music4all.zip and verifies SHA256 using source_archive_sha256.txt.

Notes

• The ZIP is password-protected. This repo preserves the encrypted source package and machine-readable manifests.