This is really great. Every now and again I'm fortunate enough to stumble onto a new / unknown artist to me. Weirdly, Grooveshark was really good for this (as it gave me some of my very top favorites through a Grooveshark Premium thing -- Quiet Company and Justin Townes Earle) but I've found generally limited utility in going from those new bands into either Google or Spotify's "More Like This" functions.

Looking at the map for Quiet Company yields a list of names that are mostly foreign to me that I'll be plowing through as I work.