If you like strings Zoe Keating does some interesting cello work by recording herself and playing along to that, and adding more. Almost like a score but she does it all herself (I just love listening to cello anything as well as classical). You might also want to check out the scores for the Studio Ghibli films (Howl's Moving Castle, Princess Mononoke, Totoro, etc). They're all composed by Joe Hisaishi, could probably do an amazon search to find all his work. Very good composer and the music is very dramatic/moving. There are some vocals but also lots of straight instruments