John Sellmeyer is a versatile trombonist, educator, and arts administrator based in New York’s Hudson Valley. He joined the Marist faculty as an adjunct instructor in 2016 and was appointed Director of Instrumental Activities and Lecturer of Music in 2026. At Marist, he directs The Pride of the Hudson Valley marching band and the Marist Pep Band while providing artistic and administrative leadership for the university’s instrumental music program, including oversight of instrumental ensembles, applied instruction, and ensemble operations. He teaches courses in music history, theory, appreciation, and performance, and previously taught applied trombone and euphonium at Dutchess Community College while maintaining a private studio.

As a performer, Sellmeyer performs regularly on alto, tenor, and bass trombones with ensembles throughout the Hudson Valley and Central New York. He is the lead trombonist for the Big Blue Big Band and performs with the Hudson Highlands Trombone Ensemble. His performance experience includes engagements with the Northern Dutchess Symphony Orchestra, Woodstock Chamber Orchestra, Western New York Chamber Orchestra, Syracuse Symphony Orchestra, Central New York Jazz Orchestra, Salt City Jazz Collective, and numerous theater productions. He is a co-founder of the nationally touring ska-rock band Razbari Sumthing, which performed in 21 states and earned two Syracuse Area Music Awards. As a soloist, he has appeared with the SUNY Fredonia Wind Ensemble, Fredonia Trombone Choir, and Onondaga Community College Wind Ensemble, and has performed as a guest with the U.S. Army Field Band and Fredonia Faculty Brass Quintet.

He holds degrees from Onondaga Community College, Syracuse University, and SUNY Fredonia, where his principal teachers included William Harris, Carl Mazzio, and Jeffrey Dee. His professional affiliations include the American Federation of Musicians, College Band Directors National Association, National Association for Music Education, New York State School Music Association, Jazz Education Network, and International Trombone Association. He is an honorary member of Kappa Kappa Psi and Tau Beta Sigma.