Filtering parameters on DLNA

Question

I'm looking for a way to browse my DLNA server and I can't seem to find any documentation on how to browse and filter specific items. Put simply, this is what I want to do: get all music artists on the server, get all music albums on the server, get all music albums of a music artist, get all music tracks for a specific album. Is this possible?

I know that I could simply build a file directory browser to browse the server, but I'm working on something that attempts to obscure filesystem layout to the user. Is there a DLNA spec out there somewhere that I can work with?