The San Francisco Bay Area ock scene of the late '60s was one that encouraged radical experimentation and discouraged the type of mindless conformity that's often plagued corporate ock. When one considers just how different Santana, Jefferson Airplane, Moby Grape, and the Grateful Dead sounded, it becomes obvious just how much it was encouraged. In the mid-'90s, an album as eclectic as Abraxas would be considered a marketing exec's worst nightmare. But at the dawn of the 1970s, this unorthodox mix of ock, jazz, salsa, and lues proved quite successful. Whether adding ock elements to salsa king Tito Puente's "Oye Como Va," embracing instrumental jazz-rock on "Incident at Neshabur" and "Samba Pa Ti," or tackling moody lues-rock on Fleetwood Mac's "Black Magic Woman," the band keeps things unpredictable yet cohesive. Many of the Santana albums that came out in the '70s are worth acquiring, but for novices, Abraxas is an excellent place to start.