Otterbein Percussion Ensemble presents Rhythm in Riley II, April 4 at 8 p.m. in Riley Auditorium. The performance will include compositions of composer and percussionist Brian Nozny. Director of the Otterbein Percussion Ensemble, Michael Yonchak, says the performance will show the audience what the role of percussion instruments are in music. Yonchak says that this experience helps to give the students a feel for the life of a musician. The event is free and open to the public.