Quicksilver Messenger Service - Dino,s Song (Monterey Pop Festival 1967)

John Cipollina—Lead guitar,Gary Duncan—Lead guitar, vocals,David Freiberg—Bass, vocals
Jim Murray—Guitar, vocals,Greg Elmore—Drums

Quicksilver Messenger Service started life during the folk-rock boom as an electric backing band for singer-guitarist-songwriter Dino Valenti. Before they could develop in that capacity, however, Valenti was arrested for drug possession and received a prison sentence. Rather than splitting up, however the group continued on without their front man, and over the next two years, the group proceeded to astound audiences in San Francisco with their performances, consisting of extended jams, stretched out through Cipollina’s shimmering angular lead guitar lines. For a time, the two top acts in the city were “the Quick and the Dead (The Grateful Dead),” but at the time of their appearance at Monterey, Quicksilver had yet to be signed by any label.

 Later in 1967, they got a spot in Jack O’Connell’s Haight-Ashbury documentary Revolution (1968), and on the accompanying soundtrack album. By the end of the year—by which time singer-guitarist Jim Murray had exited—they were under contract to Capitol Records. It wasn’t until a year after Monterey that their self-titled debut album was released, but it only captured a faint echo of the band’s dynamic live sound. Their second album, Happy Trails, was somewhat more representative, highlighted by the presence of a 25-minute jam growing out of Bo Diddley’s “Who Do You Love.” After that, the line-up began to splinter, as Gary Duncan quit and was replaced by British keyboard virtuoso Nicky Hopkins, for the album Shady Grove. Duncan returned soon after its release and it was at that point that Valenti finally rejoined the group, after attempting to restart his solo career following his parole from jail. This expanded Quicksilver line-up lasted until 1972 when Cipollina, Freiberg, and Hopkins all left—the remainder of the group, effectively led by Valenti, carried on with hired replacements for two albums before officially disbanding in 1973.

 https://www.criterion.com/current/posts/254-monterey-pop-artist-bios-part-one