The latest behemoth of a release from The Grateful Dead’s vaults is a 17-CD set featuring five complete, previously unreleased performances from 1973.

Here Comes Sunshine 1973 includes the season’s final five shows from the Iowa State Fairgrounds, UCSB, Kezar Stadium in San Francisco and RFK Memorial Stadium in Washington, D.C. The 6/10/73 show is nearly five hours long and includes a third-set encore with Dickey Betts and Butch Trucks of the Allman Brothers Band.

The Rhino-released collection comes out 6/30 and will be limited to 10k individually numbered copies. The 6/10 RFK show will be released separately on 7/28 as a four-CD set and as a limited-edition eight-LP set.

During this phase, considered the jazziest period of the Dead’s history, the band had been performing songs that would wind up Wake of the Flood and From the Mars Hotel.

A previously unreleased performance of “Ramble On Rose” from the RFK 6/10/73 show is available now. While Here Comes Sunshine includes artifacts from the era, it does not contain any actual yellow sunshine. So double down on those blackberry gummies your nephew got you—and if you get confused, just listen to the music play.