Whatever it is that Cavetown does. I really like comically hard or fast music but have no problems with most songs I deem "too soft" if it doesn't feel dead. When a song is basically a string instrument and some guy singing as softly as possible it is understimulating(best term I could find for what I feel). How bare the song is means there's nothing interesting for me each second which is what I like about listening to faster or harder songs. Most artists also come across as pretentious.
This is tragic because my boyfriend absolutely loves this kind of music.