On balmy summer Tuesday evenings in July, music lovers may be found flocking to Washington Square for extraordinary free concerts that feature Local 802 musicians playing under a union contract. Presented by the Washington Square Music Festival, the series offers adventurous programming and unusual instrumentation. The Music Performance Trust Fund has supported the festival since its inception. Pictured here are photos from the Washington Square Festival Chamber Ensemble on July 24. For more information, see www.WashingtonSquareMusicFestival.org. Photos by Kate Glicksberg.

Members of the Festival Chamber Ensemble on stage in Washington Square: flutist Sheryl Henze, oboist Diane Lesser, bassoonist Harry Searing, violinists Eriko Sato and Leonid Yanovskiy, violist Veronica Salas, cellist Lutz Rath and french horn player RJ Kelley.

Leonid Yanovskiy

Lutz Rath (foreground) and Veronica Salas

Sheryl Henze (left) and Diane Lesser

Harry Searing

Eriko Sato

Jeffery Levine

Alexandra Cook