“A Second Chance,” at Signature Theatre, is a pretty, jazzy valentine to love, in which two individuals who have lost their life partners attempt to survive. It has the potential to be trite but is decidedly not, and it stars two sensational singers, Diane and Brian Sutherland. In terms of discovering a new romance after her divorce, the woman, Jenna, is slightly better off than the man, Dan. She’s at least optimistic. But Dan’s wife has died, and he fears he can’t feel emotion again.

With book, music and lyrics by Ted Shen, the musical begins by examining dreams. Jenna says of dreams in the musical’s first song, “Could we ever live without them?” Dan, on the other hand says, “I’ve already lived my dreams.”