TANGLEWOOD This week Ozawa Hall hosts an eclectic vocal program (Tuesday), violinist Christian Tetzlaff’s solo recital (Wednesday), and a Shakespeare and Cervantes-themed evening with Yo-Yo Ma and the Boston Cello Quartet (Thursday). And for its final concerts before heading off on tour, the BSO plays Mendelssohn and Mahler (Friday) under Andris Nelsons, who also leads a program of Italian opera arias featuring soprano Kristine Opolais (Saturday). Finally, Asher Fisch presides over the traditional end-of-summer account of Beethoven’s Ninth Symphony. Lenox. 617-266-1200, www.tanglewood.org
BOSTON LANDMARKS ORCHESTRA Led by Christopher Wilkins, the Landmarks Orchestra continues its popular series of free Wednesday night performances at the Hatch Shell on the Esplanade, devoted this week to works by Ravel, Rimsky-Korsakov, and Clarice Assad. Aug. 12, 7 p.m., 617-987-2000, www.landmarksorchestra.org
CHAMBER MUSIC The Danish String Quartet visits the Dennis Union Church on Monday (www.capecodchambermusic.org ); Norfolk has the Brentano Quartet on Saturday and a gala with Emanuel Ax on Sunday (norfolk.yale.edu); and Marlboro Music wraps up its 65th season with performances on Friday, Saturday, and Sunday afternoon (www.marlboromusic.org ).