music video ideas for visual equivalent of beat matching

I once wanted to figure out a way to do video beat matching on the computer - that is, take the end transition from one music video, and not only audio-beat-match it to the 2nd video, but devise packages/templates for syncing the video, ideas for creative platforms ways to combine the two songs that the user plays with/stretches/customizes -- finding a visual way to transition them, musically-based. Finding visual elements of each of the tracks, as they already exist as the music video, and combine them / contrast them / play with them / have them interact with each other in the video space.

This can be done by separating them out into sub-windows inside the screen, have them play with each other against a black canvas (or some kind of animated / pattern canvas, anything really), or overlay them against each other in the same 100% space, in a way similar to, or inspired by, the music video for Coldcut + Hexstatic's Natural Rhythm.

EDIT: What these guys are doing is a lot more advanced than what I'm thinking -- they are taking bits of video, and making them visual representations of instruments, as well as having different shots "talk" to each other, rapid-fire, rapid-editing, as again visual representations of what's happening musically. But I got the idea in part from watching different clips interact with each other, in a musical vein. Wouldn't it be great to have two *tracks* do this with each other, as one song transitions from another?

Artists like EBN, Coldcut, Hexstatic, Negativland, already do stuff like this. But it would be nice to put this power in the hands of a user.

No doubt someone has done this or something like this ... and I just haven't researched it. Because I'm too busy seeing the creative ideas in my brain. That's the thing about artists: you have an idea, communicate it to people, someone else has something else they've been working on, you put your heads together and combine your efforts. This is the spirit of dj'ing, of artist culture. it's not about hoarding your ideas in order to make a quick buck. It's about combining your efforts.

If we're all working in separate nothing ever gets done. We are all selfish and competing against each other. Things happen much faster - indeed, progress occurs - when we are working together.