How do you organise your music?

I’m using Virtual DJ, which actually has a nice search function already (and it’s getting improved in VDJ8).

Furthermore I’m often using the automatic genre boxes when I’m constructing a playlist. If you have some genres that you like to combine in your playlists, it’s also possible to add multiple genres to a song (for example add a Top40 genre in addition to Dance, HipHop etc to have easy access to all your Top40 songs).

When building a playlist I almost always sort my music by key, as I’m very keen on having a harmonic mix. Mixing mostly Drum and Bass makes it somewhat easier because the BPM is always close enough to not worry about that.

Just let iTunes do the work on organizing, mixed in key will generate key tags and that’s about it. No need to worry about things, where people much more into this topic already thought about a solution that is so easy to use.