WINSOR MUSIC + GEORGE LI Barely in his 20s, Li is a Boston-bred pianist who recently medaled at the famed Tchaikovsky Competition. This week at Peggy Pearson’s Winsor Music series, he joins forces with veteran local string players for a performance of Brahms’s F-Minor Piano Quintet. Also on the program: the premiere of a new quartet for oboe and strings by Portuguese composer Andreia Pinto-Correia. May 24, 7 p.m., St. Paul’s Episcopal Church in Brookline. 781-863-2861, www.winsormusic.org

OPERAS OLD AND NEW Guerilla Opera presents Hannah Lash’s new contemporary adaptation of “Beowulf’’ at Boston Conservatory’s Zack Box (through May 28), and Commonwealth Lyric Theater performs Mussorgsky’s “Boris Godunov’’ at two locations (through May 26). www.guerillaopera.com, www.commonwealthlyrictheater.com JEREMY EICHLER

Jeremy Eichler can be reached at jeichler@globe.com