QUOTE(Lyx @ Apr 24 2007, 08:35)

Genres are an obsolete concept. The future is influence-based (not classifying music with a single word, but instead describing various influences and PROPERTIES of it, therefore leaving absolute catagories behind as a relict of the past). And no, it doesnt even work album-based anymore.
So, looking long-term into the future you will no longer pick single genres when composing a playlist. Instead you will do a database query to define which influences you desire, and which ones you do not want. "Mood" will probably be integrated right into the concept, so that it becomes a true "property-based" system.
- Lyx
i've already begun doing something like this. i have three genre tags, %genre% for the general scope of the music, %subgenre% gets more specific, and %style% describes the lesser influences in the music. i also use %mood%, %comment%, and %ensemble% tags to further describe individual songs. %mood% is self-explanatory, %comment% is for tags like "remix" or "live" or "alternate take" or something, and the %ensemble% tag is where i note if there are 'extra' instruments in the song that the band don't usually use.
for instance, in flames are a melodic death metal band, but not all of their songs fall into that description. in the song
pallar anders visa, the only instruments are an acoustic guitar and a violin, and the song is folkish. so my ensemble tag reads: *acoustic.g, *violin, and my mood tag reads: folkish. before i play this song, i know exactly what to expect, which isn't death metal.