yvynyl:

“During the rehearsals and recording sessions for If I Could Only Remember My Name, David Crosby and three members of the Grateful Dead, Jerry Garcia, Phil Lesh and Mickey Hart, played three dates at San Francisco’s Matrix club, December 15th, 16th and 17th, 1970. These rare recordings, from an afternoon rehearsal and a evening live show, capture this unique configuration performing a variety of Dead, Byrds and Crosby material with pretty good sound considering the casual nature of the get-together. The afternoon session is a great, fly-on-the-wall band rehearsal, as Crosby leads the Dead core through arrangements of ‘Eight Miles High’ and ‘Cowboy Movie.’”

David Crosby: vocals, guitar
Jerry Garcia: vocals, guitar
Phil Lesh: bass
Mickey Hart: drums

AFTERNOON REHEARSAL (zshare)
Alabama Bound (4:10)
Eight Miles High (6:06)
Cowboy Movie (10:00)
Wall Song (16:30)
Bertha (15:07)
Bird Song (3:33)

LIVE AT THE MATRIX (zshare)
Drop Down Mama (4:17)
Cowboy Movie (9:53)
Triad (9:51)
Wall Song (7:54)
Bertha (4:14)
Deep Elem Blues (7:27)
Motherless Children (8:56)
Laughing (10:23)

(via enumclaw:Never Get Out Of The Boat)