Abstract: Apparatus, methods, systems, and data structures for providing a music-subscription service customer with a portable music device that has been preloaded with customer-selected music. A music-subscription service provider receives a customer order to purchase a portable music device, and also receives the customer's selection of less than all of the music available on the music-subscription service provider's music database. The music-subscription service provider uses a computer to download the customer-selected music to the portable music device ordered by the customer. The music-subscription service provider then provides to the customer the portable music device that has been preloaded with the customer-selected music. The steps may be performed over the Internet and/or at a retail location.

Abstract: Apparatus, methods, systems, and data structures for organizing music files such that consumers can download single songs or entire predetermined libraries of songs with one or two clicks on an Internet browser. For passive listeners without the time to generate their own playlists, 500 to 30,000 song libraries can be downloaded to a PC, and then side loaded to an MP3 player. This will enable users to replicate the experience of listening to a favorite broadcast radio channel having songs most likely to please the listener, with zero interruptions. The stored and downloaded songs are individually categorized by song title, artist, mood/tempo, multiple genres, era, original song release date, and audience reach (e.g., audience crossover potential). For a subscription fee, the consumer will have continued access to listen to the downloaded and side loaded songs, but without the ability to copy or transfer the song.