Haley Voss is a former member of Modulation Z and currently techs their front ensemble. She also works with her alma mater, Fort Zumwalt East, during the marching band season. She has previously been with other schools in the district as well O'Fallon Township High School in Illinois.

Haley studied Music Education at Lindenwood where she was heavily involved in many ensembles. She is currently working on her degree at Maryville University and hopes to eventually wind up working for a school full-time.