How Do You Organize Your Music?

Basically I'm a genre, then alphabetize, then chronologically "kind of guy".

The classical is divided first among composers, meaning everything on the LP is by one composer.
Second, classicly by instrument, solo piano all by the same pianist, organ, oboe etc.
Third classical genre, orchestral or chamber or ballet when two or more composers
All vocals by name of group or individual
All opera singers by name
All opera by Composer's name
Soundtracks separate

i organize my music for maximum emotional impact; Saturday morning music, late night music, etc. i get into a certain mood and some music is always better than others at enhancing and complimenting that feeling. This helps find that next piece of music that keeps the the vibe steady.
You should have seen my sister in laws jaw hit the floor when i told her my 1500 or so cd's were sorted by emotion! Well, she asked....

I use orange CD catalog found here ------>>>>>> http://www.firetongue.com/

If you have not already, read Nick Hornby's book, High Fidelity. The movie adaptation of that book is not bad either. The main character goes through some, well, issues around organizing his LP's. Great book! Jack Black is hilarious in the film.

Marco