To celebrate the 50th anniversary of their experimental 1969 release Aoxomoxoa, Grateful Dead Inc. has prepared a special, deluxe edition of the record, featuring two exclusive mixes of the album (“one fully remastered from the original 1969 mix and the other remastered from the definitive 1971 band-produced mix”), as well as a third disc of unreleased live music dating back to January 24-26, 1969.

“In 1969, for their third album, the Grateful Dead eschewed outside producers and created Aoxomoxoa themselves, beginning a run of self-produced albums that would continue until 1977,” GD archivist David Lemieux said in an official statement. “Scrapping the first sessions, which were recorded to eight-track tape, the Dead now had 16 tracks with which to experiment their psychedelic sound, with an album that included entirely Robert Hunter-penned lyrics for the first time.”

The newly compiled edition of Aoxomoxoa will be available on June 7 in a CD and digital format. The band will also release a limited edition picture disc vinyl of the record, boasting the remastered version of the LP (only 10,000 available).

To pre-order the 50th anniversary edition of Aoxomoxoa visit Dead.net.