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| THE MUSIC EVOLUTION |
| 1877 ?PHONOGRAPH/CYLIND?ER 1887 RECORD ?AND GRAMAPHONE 19?06 JUKEBOX AND ?VICTROIA 1?922 RADIO 1948 ? 33RPM VINYL REC?ORD OR LP 1949 ?45RPM 1958 STEREO RE?CORDS 1965 COMP?ACT CASSETTES 196?6 8 TRACK CARTR?IDGE 1980 SONY WALKM?AN 1981 MTV 198?5 COMPACT DISC? 1987 DIGITAL AUD?IO TAPE 1992 MI?NI DISC 1999 MP?3 MUSIC FILES AN?D NAPSTER 2001 A?PPLE I-POD |
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