"Though it did't help that the genre's are great fits for the tracks I listened to, that does tend to happen with amateur music."

You mean are not? :) It's interesting how many preconceptions we have - I mean, selecting 'ambient' I were prepared for getting fuzzy, 'not-exactly-what-i-call-ambient' stuff. Where in different kind of service (say, internet radio) I really want to get almost exactly what I mean by 'ambient'. Just part of a deal using such a service. Amazing how all this adds to perception of the service and its usability (and success or failure).

(If I ever write a book that will be about 'contexts'.) :)