The “Sundays at 4” event series at the Francestown Old Meeting House will present a free Monadnock Music classical concert Aug. 13 from 4 to 5 p.m.

Founded by the late James Bolle, a resident of Francestown, Monadnock Music is a nonprofit organization that works to make music accessible to all in intimate and informal settings in the towns and villages of the Monadnock region. On Sunday, a string trio consisting of musicians Matthew Vera (violin), Samuel Kelder (viola) and Rafael Popper-Keizer (cello), will perform four pieces, including ones by Schubert and Beethoven.

Attendees can bring chairs or blankets  to hear the music on the lawn. In case of rain, the concert will move inside the Old Meeting House.