Soulful Louisiana singer Tommy McLain became a legend in his home state when his sweetly mournful cover of Patsy Cline's "Sweet Dreams" became a major hit in 1966, and he won a cult following in America and the United Kingdom for his bittersweet swamp pop gems. Blending vintage R&B, country, and early vocal group sounds with just a dash of Cajun seasoning, McLain's best sides of the 1960s and '70s (collected on the 1990 Ace Records collection Sweet Dreams) made ideal use of his clear tenor voice and his subtle, inspired use of vibrato, and he was also a talented songwriter, pe...