On This Day June 18

Columbia Records introduced the 33 1/3 LP ("long playing") record at New York's Waldorf-Astoria Hotel on June 18, 1948. The new format allowed listeners to enjoy an unprecedented 25 minutes of music per side, compared to the four minutes per side of the standard 78 rpm record. The first LPs were 10 inches in diameter, but 12 inches became the standard size, with 16-inch discs used for transcriptions. The first twelve-inch LP was Felix Mendelssohn's "Concerto in E Minor."

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