‘PERSONA’ The Gardner’s adventurous Stir series offers Keeril Makan’s new opera, “Persona,’’ with a libretto by Jay Scheib adapted from the classic Ingmar Bergman film. Evan Ziporyn conducts the Either/Or ensemble, with soprano Amanda Crider and actress Lacey Dorn. May 5, 7 p.m., Isabella Stewart Gardner Museum. 617-278-5156, www.gardnermuseum.org

RADIUS ENSEMBLE These eloquent chamber players perform the premiere of John Harbison’s “Nine Rasas’’ for clarinet, viola, and piano, on a program that also includes a work by Lev “Ljova’’ Zhurbin and Schubert’s “Trout’’ Quintet. May 7, 8 p.m., Pickman Hall, Longy School of Music. 617-792-7234, www.radiusensemble.org

MUSICIANS FROM MARLBORO A brief foretaste of the Vermont summer chamber season, via works by Haydn, Schumann, and Kaija Saariaho. May 8, 1:30 p.m., Isabella Stewart Gardner Museum. 617-278-5156, www.gardnermuseum.org JEREMY EICHLER

Jeremy Eichler can be reached at jeichler@globe.com