The third long-player from San Francisco psychedelic icons Quicksilver Messenger Service (QMS) is a direct contrast from their previous discs. Shady Grove (1969) is comprised mostly of shorter and self-contained pieces as opposed to the long and extended jams that were so prevalent on their self-titled debut (1967) and Happy Trails (1969). Ironically, the one stretched-out instrumental is courtesy of their latest acquisition -- Brit recording session guru Nicky Hopkins (keyboards). Another possible reason for the shift in style as well as personnel is the conspicuous absence of Gary Duncan (guitar) -- who is rumored to have been a "guest" of Bay Area law enforcement at the time. The band incorporate a number of different styles on the album. Kicking off the disc is an up-tempo rocking version of the traditional Appalachian folk song "Shady Grove." The QMS reading is highlighted by John Cipollina's trademark fluid fretwork and a familiar "Bo Diddley" backbeat -- reminiscent of both "Who Do You Love" and "Mona" from the live ensemble LP Happy Trails. (all music)