Great work dpromsky.
Also very nice to see you are a prog fan. Gotta mean you do this out of a deep love for music too.
And to see Ozric Tentacles in the list... 
Small feature/GUI request:
Would be nice to be able to increase the font size and/or line spacing of the Library and Play list.
All pretty squashed at the moment, especially the Library. A little more whitespace would help in visual browsing.