So I went to a The Decemberists concert and there was this really good opening act, they jammed, had crazy awesome American Indian type chanting, and a sweet indie rock aura about them. The band was Grizzly Bear and their latest album is Yellow House, and almost every song is great, the rest are just very good. It's very good music to just chill too, also some good night driving music, and good background music. It's got a good slow pace, yet has plenty going on to keep you interested. It's a hard band to describe though, so just listen to them!