The Bach Project at Ashmont Hill Chamber Music begins its seventh season of concerts in Dorchester on Sun., Oct. 22, at 4 p.m., with an all-instrumental concert exploring the musical form known as the trio sonata. The program presents a trio of sonatas featuring Andrea LeBlanc, flute; Susanna Ogata, violin; Michal Shein, cello; Olav Chris Henriksen, theobo; and Andrew Sheranian, harpsichord and organ.

Join in for a gorgeous afternoon of chamber music by both J.S. and his son C.P.E. Bach and their different interpretations of this popular Baroque musical form.

Tickets range from $25 for adults; $18 for students; $3 for EBT Card Holders; children under 13 are free. For tickets and more information visit ahchambermusic.org.