OUROBOROS TRILOGY Two freshly minted operas — Scott Wheeler’s “Naga’’ and Paola Prestini’s “Gilgamesh’’ — join Zhou Long’s “Madame White Snake’’ to make up the ambitious “Ouroboros Trilogy.’’ All three works have librettos by Cerise Lim Jacobs. Michael Counts directs. Sept. 10-17, Cutler Majestic Theatre. 617-824-8400, www.artsemerson.org

SOUTH MOUNTAIN CONCERTS Even older than Tanglewood, the annual South Mountain Concerts take place in late summer, bringing top-flight chamber music to the Berkshires right after the Boston Symphony Orchestra’s summer season has ended. This year’s series begins with an afternoon of piano trios by Beethoven and Schubert, performed by pianist Wu Han, cellist David Finckel, and violinist Philip Setzer. Sept. 4, 3 p.m., South Mountain Concert Hall, Pittsfield. 413-442-2106, www.south mountainconcerts.org

A FAR CRY As the Gardner Museum’s resident chamber orchestra, A Far Cry kicks off the museum’s popular Sunday concert series with a characteristically eclectic program that moves from Haydn’s Symphony No. 22 to Reich’s “Clapping Music’’ and beyond. Sept. 11, 1:30 p.m., Isabella Stewart Gardner Museum. 617-278-5156, www.gardner museum.org JEREMY EICHLER

Jeremy Eichler can be reached at jeichler@globe.com