Released April 15, 2008, this album completes the Alchemy Index set that begun with Volumes 1 & 2, Fire & Water.
Vol. 3 Air has a sound that varies between an airy alternative rock and an airy ambient feel.
Vol. 4 Earth serves up a bluesy folk that makes it sound like you’re in wood-paneled living room with the band or, in some cases, a smokey bar. (They recorded it in a house with the furniture removed to achieve this sonic impression.)