The Fibonacci Brothers aren't really related, it's just a cool name. For those who don't know who the original Fibonacci was see -

This is an example of a technique I developed in the early 80's which I call shotgun mixing (I would randomly erase tracks while monitoring a different track to thin out overly dense multi-track sessions) combined with 21st century visual editing where edits are made looking at the waveform and not necessarily listening to the tracks, also to thin things out.