I kind of get what he is asking. There are certain bands/artists that I really wouldn't listen to at certain times.
Like I wouldn't listen to Pig Destroyer, Hewhocurrupts, or other grindcore bands if I'm trying to relax. Also I usually only listen to Sigur Ros, Lillypad, Super Minerals, Apple Snails, etc when I'm trying to relax or I'm reading or something.
But... that being said Santogold really doesn't fall into "mood" type music IMO. I break it out when I want to hear a album that is pretty different from the norm (mainstream speaking) and has really good beats and singing on it.