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Gramophone
Gramophone invented -
Period: to
Music throughout the years
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Record
Record invented -
Cassette
Cassette invented -
CD
CD invented -
Ipod
Ipod invented -
ITunes
ITunes invented -
30 legal digital services, 400,000 licensed tracks online
$10 - 1 album
Beyonce song - available in only 5 formats -
Over 400 legal digited services, 11,000,000+ Licensed tracks online
99 cents = 1 track on itunes
Beyonce song - available in 260 different products
