Ah, sweet rock 'n roll! Say what? Yes, "Suite Judy Blue Eyes" (CCNY) is sweet. "Silhouettes" takes us back in time to the stone age of rock. A rap/reggae intro to "Get Off Of My Cloud" makes it into an original all over again. Bob Dylan is here.You won't even know its "Like A Rolling Stone" until a minute or so has passed. The Beatles are here. OK, lets go out with one of the intriguing tunes in rock n' roll, "Bohemian Rhapsody". Four singers with great voices and unusually fine arranging skills apply themselves to the world of rock with grand results.