“Sondheim in the City,” Melissa Errico’s tribute to Sondheim’s urbanity, feels like a New York house tour of thrill and heartbreak. In songs like the jangly “Another Hundred People,” the exuberant “What More Do I Need?” and the dry, disappointed “It Wasn’t Meant to Happen,” Errico, one of Sondheim’s deepest-hearted yet lightest-touch interpreters, evokes both the city and cabaret style at its best. (She’ll be singing the program at 54 Below in May.) On the pristine recording you can almost hear the martini glasses clink — and shatter.