bonzi: Thanks for the specific references. I'll dig through the Programming section (which I've essentially never read in 2 years here) so I can learn what they all mean.

dbrashear: Ah, Wendy filters. That is a great idea. I'll dig into that before I go reorganizing my entire collection. Thanks.

Tony: Knowing my compulsion, it would be more than a few playlists. There are so many attributes that I like to sort by, it would potentially require a duplication of my entire database for each attribute. And sorting by multiple attributes would be nice too; though difficult using playlist structure.

When I started my initial tagging effort, I found that any text could be placed into the genre tag. I decided to stick to the most standard set of tags humanly possible incase I ever used a program that could sort by tags. I'd hate to have that program not recognize my custom tags.

But I saw somewhere (Tag&Rename new version release notes?) that some version of ID3 supports multiple genre tags, up to six I think. That would be great way to store attributes (using arbitrary text instead of a genre list) if the empeg could read them. But, then the attributes couldn't be shared like lyric files. If I'm going categorize all my songs, I might as well share the results.

Windy filters it is, but maybe a desktop music management program could use a feature like this. Ha, if I had this feature, I'd actually listen to music at home instead of just in the car.