Does something like this help for increased categorization? I have a band where we record our rehearsals and so it kind of obliterates the old Song/Artist/Album style of categorization. We add things like Session/Rendition, and want to look up "songs by session" and "songs that Steve played on in January" and things like that. We eventually started playing with Filemaker of all things, but I wonder if there's something easier and more web-based, without having to create a whole new custom web app from scratch.