This is probably just basic knowledge of professional editors – but my question is where to find more knowledge about it:
If you let the beat of the music trigger the cut from media to media (stills and/or videos) you can play with the resulting mood if you cut on 1, on 2 or even on 3 (signalling continuity).
You may also draw the cut up to some 0.7 seconds after the beat (signalling a relaxed mood)
With ”cut” I mean i.e. a simple crossfade lasting anything from 0.1 to 1 second.
I use such things in my videos – but think there is more to it - so where to look for more knowledge on this?