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Freemusicdemixer
Convert MP3 or WAV into editable sheet music and guitar tab drafts, MIDI, and stems, with specialized piano, drum, and
Verification record
Each check is stored append-only with a SHA-256 fingerprint of its evidence, so a result can't be quietly edited later. How we grade.
No checks recorded yet in the new ledger (last legacy check: 2026-03-16).