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Continue to ChatRARE AUDIO: David and The Dorks - David Crosby, Jerry Garcia, Phil Lesh, Mickey Hart - rehearshal and show - 1970, Matrix in San Francisco https://www.deadheadland.com/2015/12/15/rare-audio-david-and-the-dorks-david-crosby-jerry-garcia-phil-lesh-mickey-hart-rehearshal-and-show-1970-matrix-in-san-francisco/