Editorial and correction policy
Selections are made for historical signal, regional contrast, and a playable source—not as paid rankings.
Listening windows
The displayed year is a listening-window label and does not always mean the original recording or release year. Nearby-year material may be used when release, promotion, international issue, or public memory crosses a calendar boundary.
Selection
The archive considers historical signal, regional balance, durable public memory, source reliability, and whether a song helps explain a transition. Commercial payment does not determine inclusion.
Video references
Official artist, label, broadcaster, or other stable uploads are preferred when available. Broken, blocked, private, non-embeddable, and Made for Kids references are reviewed or removed from embedded playback.
Corrections
Material corrections are recorded in the public curation journal. A useful report identifies the entry, issue, and supporting source.