The Naptown Philharmonic Orchestra is performing a mixture of world-famous musical theater compositions at its Broadway Legends concert Sunday.

What sets this 22-year-old orchestra apart from others is that its players range from high schoolers to people past the traditional retirement age and all ages in between.

The set list will feature music from classics like “Phantom of the Opera” and the modern sensation “Hamilton.”

“We really balance our programs throughout the season so there’s something for everyone, and so that it lends to a more multi-generational audience,” said conductor Anna Binneweg, who joined the group in 2007. “But this one in particular, we tend to do one concert a year that is in a more popular vein, so to speak. And this one, I tried to pick some traditional Broadway tunes from the ’50s and ’60s, and coupled them with more modern [songs].”

Expect to hear “Louder Than Words” from “Tick Tick Boom” and a “Mama Mia” medley, among others.

During Wednesday’s rehearsal for the show, musicians funneled into Woods Memorial Presbyterian Church and promptly went to work. Binneweg gave notes until the songs sounded ready for a public performance.

Binneweg holds a doctorate in conducting from Northwestern University in Evanston, Illinois, and is a professor of music and orchestra director at Anne Arundel Community College. She is also the director of the Washington Metropolitan Philharmonic Orchestra.

“Score preparation is months and months of work, and the harder the score, the longer you need,” Binneweg said. “What we do with the whole process, background, orchestration, phrasing, theory, harmony, it goes on — it’s a never-ending process.”

The orchestra is funded through ticket sales, sponsors, two of whom are the Anne Arundel County and Maryland State arts councils, and donors. Since its inception in 2003 its goal has been to make high quality performances affordable.

A key part of the Naptown Philharmonic is its age range. Some musicians are as young as 14, while others are in their 80s. Each one, like 11th-grade oboist Luke Zegowitz, auditioned.

“The people are great, the sense of community is amazing. … We play great music, and I’ve made a lot of great connections over the years,” Zegowitz said. “It was a dream come true when I was able to play with a real symphony.”

With Broadway songs comes singing, and tenor Brian Shatt decided to enlist extra help. Shatt is the choir director at Archbishop Spalding High School in Severn, and convinced eight of his students to help out with vocals.

“This is my first time playing with an orchestra or sitting with an orchestra this big. It’s really cool,” said senior Savannah Nixon. “You can feel all the vibrations and the instruments.”

“Seeing this and seeing how they all work together to make this kind of music, it’s really great to just hear it,” said sophomore Tucker Lapriola. “And I just think the Broadway adds on to it, and makes it so much more fantastic.”

Musicians from Broadneck High School will also be performing with the Naptown Philharmonic.

“Our mission is to be family friendly, more casual, more inclusive, fun, [with a] good mix of traditional music” Binneweg said.

The Naptown Philharmonic Orchestra was previously known as the Londontowne Symphony Orchestra before changing its name last year, which Binneweg said was done to reflect the change in mission.

Broadway Legends takes place at 3 p.m. Sunday at Maryland Hall in Annapolis. Tickets are $25 and free for students. For more information, go to naptownphil.org.

Have a news tip? Contact Benjamin Rothstein at brothstein@baltsun.com, 443-928-1926.