It’s the Grateful Dead’s 60th anniversary, and a piece of genuine psychedelic history just surfaced from that era of counterculture fog in San Francisco.

Young’s new tour doc “Coastal” is showing around town Thursday, while “Pink Floyd at Pompeii” has times set April 24 and 27.

Nine indie artists, from the Decemberists to Wolf Parade to Deerhoof to Mountain Goats, discuss their 2005 breakthrough albums.