Powers Park Concert Series
Classic Rock Night 2 featuring Emerald City. Aug. 27, 6 p.m., Powers Park, 420 Second Ave., Troy. Free. Information: 279-7162.
A Gershwin Gala
Pianist Thomas Pandolfi and violinist Emil Altschuler perform music by the great American composer. Aug. 27, 6:30 p.m., The Sembrich Opera Museum, 4800 Lakeshore Dr., Bolton Landing. Tickets: $150. Information: 644-2431 or www.thesembrich.org.
Black Mountain Symphony
Original groove pop band. Aug. 27, 7 p.m., Freedom Park, Schonowee Avenue, Scotia. Free. Information: www.FreedomParkScotia.com.
Boston Symphony Orchestra
Special guest Yo-Yo Ma joins the orchestra to perform works by Haydn, Williams and more. Aug. 27, 8 p.m., Koussevitzky Music Shed, Tanglewood, Lenox, Mass. Tickets: $22-$111. Information: www.bso.org.