Composer and violinist Mark O’Connor presents a free demonstration of his violin method at PSU’s Lincoln Hall, room 75, at 10 a.m. on Monday, August 26. Sponsored by All Classical and PSU, the demonstration is free and open to the public. O’Connor composed the Appalachia Waltz and the Americana Symphony. His method emphasizes improvisation and technical proficiency. For questions, please call 503-943-5828.