Magic Music Visuals

I'm making a orchestral track video for youtube and wish for the video to change in size depending on percussion.
https://www.youtube.com/watch?v=br517ctCUCE
So I wish for the video to expand and contract depending on sound. How would I go about doing this?

In a word, scale.

What I often do is add a global, e.g. BassScale which responds to bass audio offset by one which I apply to both X and Y of a scale module. To emulate the video you posted you could add a radial blur with a threshold on bass.

Another way is to apply a bulge effect reactive to audio.

Input 0 is set to be the 0 channel of an imported sound file.