8-bit music - less is more?

I got pointed to an 8-bit conversion of a Pink Floyd song today, and I
have to say 8-bit music could be addictive. I'm actually thinking it
would be easier to work to 8-bit music since it's less distracting. I
guess the other bits free our minds up for other things? Here's the
one I started with.

Pink Floyd's Money:

I also liked Metallica's Fade to Black:

and Master of Puppets: