I was on hold waiting to speak to a customer service rep the other day when I realized that the hold music was so fucking weird.  It exists simply to avoid dead air.  It's also designed not to be good, but to be bad to the least number of people possible.  Basically, blandness is a feature that's functionally stitched into this type of music.

I found the "smoothe jazz" Pandora station and started dancing to it.  It's music with no point of view.  It's empty of meaning.  It's also challenging to dance to, and I also find that it forces me to address my personal voice.

TL;DR - Smoothe Jazz is fun to dance to because it has no point of view.