OK....i know a little bit about creating smart playlists in iTunes(which is awesomer than creating a normal playlist)....but this example i just learned about
http://www.digitaldjtips.com/2010/11/itunes-planning-dj-set/....just scroll to the part "basic tagging", on where he describes using grouping with live updating "checked"....So awesome!!!! ...Setting the rules is key.
Where it says artist, you can change it to whatever you like, i'm interested in grouping right now. Which i might use phrases like, Hype..Slow..Brap..Hot..Ol School.....Etc.
when editing file info in iTunes, you put whatever you want in grouping, to go with your smart playlists, which you would put "24 bit" from the below pic, in the above pic^^, where you input text for smart playlists....and with live updating, you can drop a song by editing the group of said song.
I am gonna be creating a lot more Smart Playlists, and most likely be getting rid of my regular playlists.
Hope that wasn't confusing for some.
Itunes is the best music organizing software on the Planet(i said this earlier). DJ's Love it!!!