tomcat similarly those with ordinary skill in the art will also recognize that database 115 may utilize a variety of known database platforms or technologies e g mysql etc or may be implemented programmatically through data that is statically embedded in various source code files those with ordinary skill in the art will also recognize that any ip capable device i e not just mobile devices such as 120 may be used in an infrastructure environment described in fig1 without departing from the spirit of the present invention those with ordinary skill in the art will also recognize that the traditional music store component 225 may be offered by interacting with a third party service provider such as amazon or any other digital content reseller known to those with ordinary skill in the art fig3 depicts one embodiment of a subscriber music library user interface that may be served by the online music service server 100 to the web browser of a subscriber 39 s terminal 105 when a subscriber of the online music service logs into his prior registered account on server 100 a web page including the interface of fig3 is served by the server 39 s web server component 210 to the subscriber as shown in fig3 the user interface displays a list of songs stored in the subscriber 39 s account at server 100 each of which can be selected and streamed to the subscriber 39 s terminal 105 or copied to and then played on the subscriber 39 s mobile device 120 similar to other current digital music player applications or services e g itunes realplayer napster etc the user interface of fig3 displays the name of the songs artists albums cover art and other useful information for the songs stored in the subscriber.