(I tried to post this last night, but your blog rejected it – trying again:)
One of the big UI wins for the web browser is that it allows one to build content-specific browsers (i.e., you build a browser in HTML / CSS / JS). And, it’s great to see sites pushing beyond web page “document” convention to make browsers more appropriate for different types of content / experiences / interactions.
I really dig what thesixtyone.com is doing! But, the site is definitely weakest with regards to the text content that traditionally would scroll down the page. I don’t think they need scroll bars, but they are basically using fold-downs to unveil text in place of scroll bars — and I don’t think it makes for a great text experience.
The big UI question is: if someone has a lot of say about a song (in text), what are ways to make that work in relation the visual / music player control experiences where you don’t need “pages”?
I think there are a lot of interesting potentials for how one might arrange interfaces that transition between both music / media and text / hypertext. The iTunes file library model ain’t it, but thesixtyone and what you’ve done with WaxMP3 are the inspiring examples!