The 15th season of the Cool Classics Concert series opens with a viola and harp duo. from Tulsa. Appassionata performs everything from sophisticated classical concerts to rock ballads, and they cover hits by Pink Floyd and Coldplay. The League of Women Voters hosts the hour-long social and refreshments preceding the concert. There is a $5 suggested donation, and a $5 per glass wine charge; limit of 2 per person.