Iron and Wine’s latest album, “Ghost on Ghost,” is both a stroll down memory lane and a step forward for singer-songwriter Sam Beam. Beam said in an interview his goal for the album was to get away from the “anxious tension” of his past two albums. Bean succeeded — “Ghost on Ghost” is anything but tense and anxious. Pop and smooth jazz influences abound, especially in the track “Lover’s Revolution,” which features a sweet saxophone solo. Leadoff track “Caught in the Briars” sets the relaxing and breezy tone for the rest of the album. With each new album, Beam expands and layers his sound with a careful dexterity that few artists possess. However, longtime Iron and Wine fans might prefer the pared-down acoustic sound of previous albums. “Ghost on Ghost” may not have the staying power of “The Creek Drank The Cradle,” but it’s still a dreamy and ethereal ride.