Thanks to Youtube User Osty Gale, we can now listen to every guest of the Grateful Dead jam in under eight hours. This audio playlist compiles all known tapes of The Grateful Dead performing live with select guest sit-ins, from David Crosby, Duane Allman, Ken Nordine, Ornette Coleman and Spencer Davis, to Branford Marsalis and the Gyoto Monks.

In a conversation spurred by “The Crowded Dead Stage 1976-1988” discussion, the cognitive miser went on to collect all documented sit-ins spanning from 1966-1995, ultimately showcasing the evolution of musicianship, the timelessness of their music, and the jamminess of the Grateful Dead novelty.

Let this entertain you: