Phi Mu Alpha Sinfonia is a national men's music fraternity dedicated to the advancement of music in America. With more than two-hundred chapters nationwide, Phi Mu Alpha is the nation's largest such organization. The Zeta Beta chapter at Augustana College (Province 26) was founded in 1971, and is currently composed of 37 active members. Current officers are:
- President: Jason Glombicki
- Vice President: Derek Zabransky
- Secretary: Kyle Severson
- Treasurer: Josh Youngs
- Fraternal Education Officer: Dave Elliott
- Warden: Greg Stopka
- Historian: Leif Theden
- Alumni Secretary: Eddie Vilchiz
- Coordinator of Musical Activities: Clyde Andrew Walter
- Music Director: Nicholas Nolte