BONUS: The Nedcast

A surprising and wide-ranging conversation with Ned Lagin, the pioneering jazz-trained electronic composer whose friendship with the Grateful Dead began when the band crowded into his M.I.T. dorm room to jam and would encompass contributions to American Beauty and Wake of the Flood, nearly 20 onstage appearances with the band between 1970 and 1975, and Lagin’s own Seastones project, released by Jerry Garcia’s Round Records, featuring contributions by Garcia, Phil Lesh, Mickey Hart, David Crosby, Grace Slick, and more.