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The History of Mercury Living Presence
The year was 1950. The record industry was recovering from the 'battle of the speeds', which pitted RCA Victor, with its 45-rpm disc, against Columbia Records, inventor of the microgroove long-playing record. (The 78-rpm shellac disc had just suffered a swift demise.) In the aftermath of the protracted struggle, the unexpected happened. Both sides won: the 45-rpm became the preferred speed for popular music at the time and the LP was adopted as the industry standard for classics and other 'long-playing' programs.