Calliope will perform at the Presbyterian Church of the Mountain on Route 611 in Delaware Water Gap at 6 p.m. July 31 as part of its Summer Gazebo Concert Series. Members include Gina Bertucci, flute; Barbara McMahon, flute; and Laura Goss, bassoon. Joining the trio will be Steve Mathiesen, marimba.

The concert will include classical selections by W.F. Bach, Telemann, Vivaldi and Faure, as well as contemporary composers.The concert is free and held rain or shine on the lawn of the church. Bring a picnic or purchase light fare in support of the concert series. In case of bad weather, the concert is moved into the sanctuary.For more information call 570-350-3404 or visit

www.churchofthemountain.org.