Dennis teaches a variety of disciplines including piano and all band instruments as well as violin, and percussion. Mr. Tischhauser graduated with a Bachelor of Music Education Degree from the University of Wisconsin-Eau Claire in 1983. Since then he has completed graduate work at ten Universities in three states. Mr. Tischhauser's major instrument is trombone (Bass Trombone Specialist) and his minor areas are percussion, (Mallet Specialist), violin, and music composition. He also has studied flute, oboe, bassoon, clarinet, saxophone, trumpet, horn, euphonium and tuba. In 2000-2001, Mr. Tischhauser was Director of Instrumental Music Activities at John F. Kennedy High School in Bloomington, MN. Prior to that, he successfully directed the Instrumental Music Program at Sisseton High School in Sisseton, SD for 16 years. While at Sisseton High School, his Jazz Ensemble accumulated numerous titles including six consecutive South Dakota Jazz Festival First Place finishes. Presently, Mr. Tischhauser is an active music studio teacher in the Twin Cities and guest conductor. Mr. Tischhauser adjudicates music contests in three states and is a member of numerous professional music associations, He presently performs as a tubist with Minnesota Brass (which won DCA's World Championship in 2011), and Minne-Brass (Which won DCA's Mini Corps competition in 2005). Other active performing groups include principal trombonist of the Kenwood Symphony Orchestra, bass-trombonist in the Minneapolis Trombone Choir, Baritone Saxophonist with the West Central All-Stars Big Band and herald trumpeter at the Minnesota Renaissance Festival