The Newburyport Choral Society is scheduled to perform its annual winter concerts at Belleville Congregational Church at 8 p.m. Saturday and 2:30 p.m. next Sunday. The choral society, under the direction of music director Gerald Weale, offers a diverse program that features the “Magnificat” by 20th-century composer Jonathan Willcocks. The program will also include a cappella liturgical hymns by Russian composers Sergei Rachmaninoff and Pavel Chesnokov, the powerful beat of “Rhythm of Life” from “Sweet Charity,” and holiday classics. Tickets are available online at www.newburyportchoralsociety.org. Cost: $22 per adult; $10 per ticket for students and seniors. Tickets will also be available at the door for $35. Belleville Congregational Church is at 300 High St.