ERIC BURDON One of rock’s most distinctive voices gets personal with a new album   Ask Eric Burdon what’s on his mind and he says, “Being successful at my next gig.” After a half-century of lending his voice to hits, including “The House of the Rising Sun,” “It’s My Life,” and “Don’t Let Me Be Misunderstood” for British Invasion band the Animals, and offering funk icons War their first taste of stardom in 1970 with “Spill...