I plan on mixing a track that doesn't start with a bass beat because I'm spinning at a rave with my own eq--so I have to mix over to a different setup (or have to be prepared to do so if we can't find another way to hook up my eq) I've thought a lot about this, and what I plan on doing is this: First I'll see what BPM the live track is, then I'll use my bpm to adjust to the approx bpm on my cue track. I'll cue my track up, then kill the bass about 4 beats before I plan on mixing in my cue track. Then after about another 16 beats (which won't be actually played since I killed the bass), I'll probably finish fading out the last track.

My main goal is to keep it pretty short just because of the possibility of a trainwreck. I am also assuming that the dj before me is going to be playing in my BPM range. If not, then I'll probably just power down his table 32 beats before my tracks starts kicking in with its bass, then let it ride out on a slow, bassless, set transition. This will help transition between any other genre and trance

You can plan much better than I can because you will have a clue what you want to play before that track. You can pick out two tracks that go well together, where as I don't have that option. My main thoughts are that you keep it short if you don't have it beatmatched well. You can beatmatch it well though, if you simple fast forward to a part of the track that does have a bass beat. Match it, and then use Meridian512's suggestions to maintain the beatmatch during your actual transition.

Some people like matt darey can do this increable (like on Pure Euphoria transitioning into William orbit's adagio for strings) and others like Nu-NRG just kind of slam it home into the next track and kill the first track really quickly (like on live at orgasmatron)

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When you dance, the DJ takes you on a journey, but he or she is usually not the focus of your experience at a club or festival or wherever you hear the music. Dancing is. Music is.