Jazz on Jay
The Scott Bassinson Quartet performs. Noon, “The Circle” at State and Jay streets (across from Proctor’s), Schenectady. Free. Information: 372-5656.
Concerts in the Park
Indie rock duo Sirsy performs. 6 p.m., Wiswall Park, Ballston Spa. Free.
Vellano Corporation Summer Concert Series
Jeff Gonzales and the 2 Bit Cowboys perform. 6:30 p.m., The Crossings, 580 Albany Shaker Road, Colonie. Free. Information: 456-2136.
Philharmonia Baroque Orchestra
Performing “Scarlatti” with the help of five opera singers — Suzanna Ogrohensek, Diana Moore, Clint can der Linde, Nicholas Phan and Douglas Williams — and the Philharmonia Chorale. Aug. 25, 8 p.m., Seiji Ozawa Hall, Tanglewood, Lenox, Mass. Tickets: $18-$56. Information: www.bso.org.