COMPUTER SOFTWARE FOR MANAGING, IDENTIFYING AND SELECTING MUSIC AND FOR CREATING MUSIC PLAYLISTS; SOFTWARE DEVELOPMENT KITS (SDK) COMPRISED OF COMPUTER SOFTWARE FOR ADAPTING THE AFOREMENTIONED COMPUTER SOFTWARE FOR USE WITH MP3 PLAYERS, CD PLAYERS, FIRMWARE EMBEDDED IN THIRD PARTY CONSUMER PRODUCTS, AND ENTERPRISE NETWORK SERVERS, AND FOR ENABLING THE AFOREMENTIONED COMPUTER SOFTWARE