Topic summary
7-inch single
Extracted from the Wikipedia article Single (music).
7-inch format
To compete with Columbia, RCA released albums as boxes of 45 rpm seven-inch singles that could be arranged to play continuously using their record changer. RCA was also releasing 7-inch singles pressed in different colors for different genres, making it easy for customers to find their preferred music. The novelty of multicolored singles wore off soon: by 1952, all RCA singles were pressed in black vinyl.