They may not be anticipating another of organist Rick Rineer's favorite instruments - an accordion.
"A lot of people like the accordion, but not many people play it any more," Rineer said.
Rineer had been taking piano lessons when an episode of The Lawrence Welk show led him to a 25-year passion for the accordion. Myron Floren [the accordionist with the long-running musical TV show] made it look like fun, Rineer recalled.
"I checked the classified ads and found a gentleman on New Holland Pike that had one for sale," he said. "It came with [instruction] books and I started with that. I never had formal instruction, so I learned as much as I could from the books. I pretty much taught myself to play."
Within seven months, he was accomplished enough to play a couple of songs in front of an audience.
"I did a lot of practice," he said.
He's now on his third accordion, a professional model that weighs nearly 50 pounds.
"It's a little bit bigger and has more stops so it has a different variety of tones. But it can weigh on your shoulders after a while," he said.
The hour-long concert will include a variety of musical selections. "We're calling the program an afternoon of music," Rineer said. "I'm still pulling the music for it."
While he hasn't made all of the selections, Rineer has decided the general mix.
"There will be sacred songs, classical, popular, and patriotic tunes. There will be a little bit of everything," he said. "And there will be polka medley for the accordion, because people expect polka with an accordion."
This concert grew out of one held last June to dedicate the church's renovated organ.
"People were asking for another," Rineer said. "When there's a fifth Sunday in a month, we have been having a hymn sing. I got the idea of having a concert this time in place of the hymn sing."
The concert will be held at the church, 255 Little Britain Church Rd., at 3 p.m. on Sunday, October 29. Admission is free; the public is invited to attend. Refreshments will follow in the church's social hall.
"We just want people to come and enjoy the music," he said.