AUGUSTA — The “Concerts at Jewett” Series sponsored by University of Maine at Augusta College of Arts and Sciences and UMA Senior College will present “Sing a Cappella” with Maine-ly Harmony and Back Bay Four at 2 p.m. Sunday, Feb. 8, at Jewett Hall Auditorium.

Maine-ly Harmony is an award-winning a cappella women’s chorus directed by Kathy Greason, with members from Bangor and Auburn as well as central Maine. Chartered in 1989, the chorus celebrated 25 years of harmony in 2014. Maine-ly Harmony sings barbershop harmony, a style of four-part, unaccompanied (a cappella) singing.

Back Bay Four, a barbershop quartet, formed in 2001 and is made up of members of the Portland Downeasters Chorus. With over 60 collective years of barbershop harmony behind them, the group sings an eclectic mix of music.

Tickets are $10, students $5, 12 and under free. Tickets are available at Pat’s Pizza in Augusta, Apple Valley Books in Winthrop, and at the door. Snow date: Feb. 22. Call 207-621-3551, or email umasc@maine.edu for more information.