HOUGHTON - In 2000 Michigan Technological University teacher Don Keranen died suddenly. He was 49-years-old. During his time at Tech, Keranen developed the jazz studies program, which today includes two big bands, three combos and academic courses in jazz history, jazz improvisation and jazz arranging. He also instituted and developed the MTU Wind Ensemble, which is now known as Superior Winds. When Keranen died, his death came as a shock to everybody who knew him.