In The Guess Who’s decade-long run through the '60s and '70s, the Canuck hitmakers crafted a trove of music whose diversity and delicacy belies the beefy reputation fostered by “American Woman.” Ornate balladry (“Dreams”), harmony-laden forays into psychedelia (“Maple Fudge”), and singer Burton Cummings’ nostalgic throwbacks to doo-wop and early rock ‘n’ roll all complement the rich, R&B-influenced sound they dubbed “wheatfield soul.”