Two renowned musicians - violinist Sarah Plum of Drake and pianist Francine Kay of Princeton - are giving a series of concerts in Iowa this week. You can hear them live in Des Moines Wednesday at noon at St. John's Lutheran Church and at 7:30 at Sheslow Auditorium at Drake - but you can get a live preview at 1 PM on IPR! Barney will host them live, as they perform Beethoven's Violin Sonata no. 10 and Bartok's Violin Sonata no. 2.