When Barbara Tracy sits at the organ in the First Presbyterian Church sanctuary and puts her fingers to its keys, it begins to sing.

Tracy, 67, has been First Presbyterian’s organist for 25 years, filling the church with sacred music that inspires song from the church’s choir and calls its congregation to prayer. She will celebrate her 25th anniversary Sunday with a 3 p.m. organ recital at the Cherry Street church.

“We don’t celebrate saints in our tradition, but if we did, we’d have a Saint Barbara,” the Rev. Tim Brown said. “She’s a wonderful Christian who’s been blessed with the gift of glorifying God through music.”

“I’ve been working with church music for 35 years, and she is by far the best organist I’ve ever been associated with,” said choir director Sharon Penley.