Not having one of her own, she plays in the back of a music store so they go there and he teaches her asong he's just written, first playing the chords for her, then singing as she reads along with the lyrics that he's placed on the piano.
Any Universal license holder -- a music site that has been given permission to post song samples, for example -- can go to Loudeye and get the music delivered in any digital format, including Windows Media or QuickTime.