Seth Horner has served as acting principal tuba of the Baltimore Symphony Orchestra since 2014. He also plays principal tuba with the West Virginia Symphony and Oregon Ballet Theatre orchestras and previously played with the Colorado Symphony. Mr. Horner has performed with numerous American orchestras including the Philadelphia, Louisville, and Kennedy Center Opera House orchestras; the North Carolina, Colorado, West Virginia, and Oregon symphonies; and the National and New Jersey symphony orchestras.Mr. Horner is adjunct professor of tuba and euphonium at Towson University and instructor of high school tuba and euphonium at Wyoming Seminary’s Performing Arts Institute. He has adjudicated the National Youth Orchestra of the United States of America since 2012.A native of Eugene, Ore., Mr. Horner attended the Curtis Institute of Music, where he was selected as valedictorian of his class; and the University of Oregon, where he graduated with honors. He is currently pursuing a Doctor of Musical Arts degree at Peabody Conservatory and resides in Baltimore, Md.