Going Beyond Bach With an a Cappella Choir

“Bach, Before and Beyond,” a music series directed by Walter Klauss, will present its second concert of the season at the Old Whalers Church in Sag Harbor on Sunday at 3 p.m.

Titled “Beacons,” the program features the Accord Treble Choir, a group of nine women whose repertoire ranges from medieval chants to Renaissance madrigals to the vast array of 20th and 21st-century composers who wrote specifically for upper voice a cappella ensembles. 

The program includes pieces about stars and the Virgin Mary, a Norwegian folk song trilogy, a spiritual, and a civil rights-era freedom song. Tickets are $20 at the door and can also be purchased at the Romany Kramoris Gallery in Sag Harbor.