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In 1857 he made music technology
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In 1877 he made a music instrument
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In 1888 Emil Berliner music players
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In the 1960s Cassettes were made
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In 1948 CDs were made.
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In the 1970's Car radios were made
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In 1983 CDs were updated
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In 1994 studios were made
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In 2005 Digital Music Items were made