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Promo Single Album Release Type may refer to:
A type of music release where a single is issued primarily to promote an album or artist (often sent to radio/streaming or released with limited marketing).
A music release format that issues one track (the “single”), sometimes ahead of a full album, as a promotional strategy.
A full-length music release format; some albums have promotional single releases timed with their rollout.
The industry practice of planning “release types” (promo singles vs. commercial singles vs. album rollout) to support marketing and sales.