• Sean Hartmetz has been teaching instrumental music in the class room for 22 years.  He has a Bachelor of Music Education from the Conservatory of Music, University of Missouri, Kansas City.  He has done graduate work at Florida International University, Wichita State University, Ohio State University, American Band College, University of Southern Oregon, Eastern Illinois University and Duquesne University. He currently teaches orchestra and guitar at Harmony Middle School. Mr. Hartmetz' email is: Sean.Hartmetz@lcps.org.