Knoxville High School Choir Director Jackie Duffy tells KNIA KRLS News that the high school chorus will travel to Grinnell Tuesday to participate in the Little Hawkeye Conference Choral Festival, with 8 other conference schools. The chorus will rehearse and then showcase their efforts that evening at 7 in the Grinnell High School gym. Duffy says there will be about 400 members in the choir when they all come together to perform Schubert’s Mass in G Major She says some of her students feel a little daunted by the 27 minute piece, but that she is confident they will perform well.