Aaron Zeilinger holds a Bachelor of Arts degree in Music Education and a Masters of Music in Instrumental Conducting. He is the current Director of Instrumental Music at Orange Lutheran High School in Orange County. He has worked with various youth groups in both the private and public sectors over the past 14 years, and has conducted or coached a wide variety of ensembles including wind ensembles, symphonic bands, symphony orchestras, handbell choirs, drum and bugle corps and marching bands. He has also performed across the United States, as well as other many countries worldwide. Some of his most noteworthy performances were at the Opening Ceremony for the 2000 Sydney Olympics, the Sydney Opera House and the Walt Disney Concert Hall. 

Aaron is an alumni of Impulse Drum and Bugle Corps, helping found it in 1998 and marching complete seasons 2001 – 2003 when he aged out.​