Anything by Nickel Creek, specifically Chris Thile (rhymes with feely), he's the most gifted soul ever to pick up a mandolin. He does impossible things with the instrument and can pull any feeling out of you he desires. He's that good. He has solo albums, collaborates with another bluegrass band called Punch Brothers, and has done jazz gigs with the virtuoso pianist Brad Mehldau...Stuff your MP3 player full of his stuff, it'll get you down the trail.