Hear members of the National and Grizzly Bear cover the Grateful Dead's 'Terrapin Station'

Day of the Dead, the 59-track Grateful Dead tribute album spearheaded by the National’s Bryce and Aaron Dessner, comes out next month. The Dessners unveiled another track from the compilation Sunday, and it’s a doozy: The new version of the Dead’s 1977 epic “Terrapin Station” features nearly 50 musicians, including Grizzly Bear’s Daniel Rossen and Christopher Bear, and clocks in just shy of 17 minutes.

“Terrapin Station (Suite),” which debuted on SiriusXM’s Grateful Dead channel, also features the Brooklyn Youth Chorus. It follows the five tracks made available last month, which included covers by Courtney Barnett, the War on Drugs, the National, Phosphorescent and Jenny Lewis, and Bruce Hornsby.

Day of the Dead hits shelves and streaming services on May 20. Proceeds from the compilation will benefit the HIV/AIDS relief organization Red Hot.

Hear “Terrapin Station (Suite)” below.