Lovers of choral music should get in their air-conditioned cars Sunday and head to the outdoor amphitheater of the Camden Public Library for the “Water and Light” concert of Ghostlight, an a capella chorus from New York that is making its Maine debut. The concert, which is free, begins at 3 p.m.

I heard Ghostlight, directed by Evelyn Troester, this evening at Immanuel Baptist Church in Portland, and it is simply one of the best vocal ensembles I have heard in a long time. And the program selection is superb.

An added attraction is the world premiere of “The Tide Rises, The Tide Falls,” a setting of a Longfellow poem by Thomaston native Nathan Scalzone, who now composes in New York. Maybe it was the fine performance, but the work is head and shoulders above most settings, modern or of Longfellow’s time.