You can now give a the full album from Julian Koster's The Music Tapes a listen, the album officially came out September 4th, but has been put on soundcloud by Merge records.
The album is called Mary's Voice and is about as odd and whimsical as one would come to expect for this member of the Elephant 6 Collective. Koster is known especially in this project to use organic sounds and just generally antique technology that makes his recordings sound old, but somehow rich with sound at the same time. It's a contradiction that I'm not sure works all of the time for me personally, although, it makes for an interesting listen either way. That added antique element also delivers unique vibes of civil war music and general old propaganda, something that is a definite theme throughout.