It features Canned Heat's signature song, "Going Up the Country", which would later be used in the Woodstock film.

John Mayall appears on piano on "Walking by Myself" and "Bear Wires".

Dr. John appears on "Boogie Music".

The 20-minute trippy suite "Parthenogenesis" is dwarfed by the album-length "Refried Boogie", recorded live.

This blues album-related article is a stub.