Grateful Dead's seventh studio album, 1974's From the Mars Hotel, is the latest to see an expansion in the band's ongoing 50th anniversary series. The 3CD and digital set premieres a live show from May 12, 1974. It arrives on June 21 from Rhino, along with various vinyl variants of the original album. From the Mars Hotel, originally released on June 27, 1974, was the second release on the group's own Grateful Dead Records following 1973's Wake of the Flood. This busy period also saw the