Somewhere in retirement, Joe Camel must be kicking himself. “Viceroy” is about taking pleasure in something that could kill you, and the lethal paradox is part of the draw. It’s probably the Brooklyn-via-Montreal singer and songwriter’s best-known tune-a laid-back guitar-pop daydream, as wobbly and welcoming as a backyard hammock-and it captures a lot of his music’s appeal. “Ode to Viceroy”, Mac DeMarco’s sun-dappled tribute to cheap cigs from his 2012 album 2, hasn’t lost its smolder.