Grateful Dead - Blues For Allah (50th Anniversary Remaster, Picture Disc)In their 10th year, The Grateful Dead recorded one of their most ambitious albums since the late 1960s, with songwriting and songs that were as out there, jam filled, and as psychedelic as the music they were making in 1968 1969. Re mastered by GRAMMY Award winning engineer David Glasser from the original analog tapes, with speed correction and tape restoration by Plangent Processes.