Fragment 64 of 72 · drawer 06
Cassette leader and data score
A non-playable score for the changing attention demanded by leader, data, dropout, and uncertain continuation.
- Accession
- MW-F-064
- Representative period
- Graphic interpretation of sequential audio storage
- Drawer
- Acoustic notation
- Certainty
- moderate
Cassette leader and data score
Graphic interpretation of sequential audio storage
Observed surface
LEADER ————————————————— steady preparation
HEADER |·|··|·|···| repeated timing differences
DATA |·|·|··|··|·|···|·| sustained dense alternation
Implied procedure
DROPOUT |·|··| |··|·| absence inside continuity
RETURN |·|···|·| pattern resumes, but trust does not automatically resume
Interpretive residue
The score is descriptive, not decodable.
Its central event is a tiny absence whose consequence may be postponed until the final check.
Accountability record
Evidence beneath the reconstruction.
These institutional sources support the mechanism or historical practice interpreted above. They do not contain this reconstructed record, its wording, or its invented values.
- Computer History Museum · ongoing Memory & Storage: Timeline of Computer History A broad chronology of magnetic tape, disks, cassettes, removable media and solid-state storage. Open institutional record ↗
- Commodore Business Machines · 1984 C2N / 1530 / 1531 Service Manual Period service documentation for the domestic cassette mechanism and its approximately 300-baud data path. Open institutional record ↗