Quicksilver Messenger Service-"Happy Trails" (1969)

Quicksilver Messenger Service was an American Acid Rock band that also did folk, blues and jazz. It was formed in the mid-1960s in San Francisco. Their musical virtues stood out in the virtuous interaction of their instrumentalists, especially the guitarists John Cipollina and Gary Duncan. so that
They are one of the benchmarks in the world of double or twin guitars before the famous Wishbone Ash, Thin Lizzy, Judas Priest or Iron Maiden, practicing styles that ranged from acid blues and folk with mixtures of hard rock and heavy psych, but with jazz fusion influences throughout his career.
"Happy Trails" was the band's third album, released in 1969 and is their bluesiest album. The album is semi-conceptual, especially the first side, and in general it highlights the Western theme and among the most remarkable instruments, as can be seen on the back cover, the violin, further establishing the folk roots. The album is recorded in 1968 at the Fillmore West in California. This album for both the psychedelic blues and the cover reminds many of Pink Floyd's More as analogous in a way, although the latter is even more symphonic. The covers include the classic beat "Mona" and the excellent "How do you love".