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It was introduced by CBS Records (known in the United States and Canada as Columbia Records) in 1971. Many recordings using this technology were released on LP during the 1970s. Record companies who adopted this format include: Angel, CTI, Columbia (internationally called CBS Records), EMI, Epic, Eurodisc, Harvest, HMV, Seraphim, Supraphon and ...
The LP (from long playing [2] or long play) is an analog sound storage medium, specifically a phonograph record format characterized by: a speed of 33 + 1 ⁄ 3 rpm; a 12- or 10-inch (30- or 25-cm) diameter; use of the "microgroove" groove specification; and a vinyl (a copolymer of vinyl chloride acetate) composition disk.
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Columbia Records was actually reborn on May 22, 1939, as "Columbia Recording Corporation, Inc.", a Delaware corporation. [23] The NYDOS shows a later incorporation date of April 4, 1947. This corporation changed its name to Columbia Records, Inc. on October 11, 1954, and reverted to Columbia Recording Corporation on January 2, 1962. [24]
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Topics about Columbia Records albums in general should be placed in relevant topic categories This category contains studio albums released on the Columbia Records label. Please move any non-studio albums to an appropriate subcategory per WikiProject Albums guidelines .
When the Columbia LP was released in June 1948, the developers subsequently published technical information about the 33 1 ⁄ 3 rpm, microgroove, long-playing record. [5] Columbia disclosed a recording characteristic showing that it was like the NAB curve in the treble, but had more bass boost or pre-emphasis below about 150 Hz.