The Pennsylvania Sinfonia Orchestra “Valley Vivaldi” concert series resumes July 24, Christ Lutheran Church, 1245 Hamilton St., Allentown, and Aug. 21, Wesley Church, Bethlehem.

At the July 24 concert, the new Sinfonia Music Director Paul Chou performs as violin soloist and Sinfonia Concertmaster Simon Maurer performs as violin soloist.

The July 24 program is:

Antonio Vivaldi, “The Four Seasons: Summer,” Paul Chou, violin

Johann Joachim Quantz, “Quartet in E for Flute and Strings”

Marais, “Sonnerie de Sainte-Genevieve du Mont de Paris”

Johann Sebastian Bach, “Concerto for Two Violins in D,” BWV 1043, Paul Chou, violin; Simon Maurer, violin

Also performing: Inna Eyzerovich, violin; Stephani Bell, violin; Agnès Maurer, viola; Franklin Niño, cello; Nancy Merriam, bass; Christine Moulton, flute, and, Allan Birney, harpsichord.

Single tickets are available in advance or at the door.

Reservations: 610 434-7811

The 2022-23 season is the Sinfonia’s 40th anniversary season. The concert schedule is: Sept. 24 and Nov. 19; and Feb. 5, March 18 and April 22, 2023.

Information: pasinfonia@verizon.net; www.PASinfonia.org