A novice's attempt to detect Al Kooper's background roles on the Stones' "You Can't Always Get What You Want" or many of Bob Dylan's hits, including "Like a Rolling Stone," may not be simple. Even a newcomer's attempt to recognize Kooper with Mike Bloomfield on "Season of the Witch" can be a task. But there's no problem discerning his work on the iconic "I Stand Alone." Once hearing the string of melodies and the lead voice of Kooper, the listener will be compelled to latch onto "Child Is Father to Man," the first album for Blood, Sweat and Tears, a group Kooper founded. Irresistible rock 'n roll.