The Sagan National Colloquium presents pianist Vicky Chow performing composer Tristan Perich’s “Surface Image,” a piece for solo piano and 40 channel 1-bit electronics. Perich’s art and music explore the boundary between data and its physical realization. Learn more at www.tristanperich.com. Chow is the pianist for the New York-based sextet Bang on a Can All-Stars and a founding member of DUO X88 and six keyboard ensemble GRANDBAND. Learn more at www.vickychow.com. Chow’s performance will be held in Jemison Auditorium inside Ohio Wesleyan’s Sanborn Hall, 23 Elizabeth St., Delaware. Each year, OWU’s colloquium takes an in-depth look at an issue of global importance. The 2016-2017 lecture series focuses on the growing importance of “Data in our Lives.” Learn more about the colloquium at www.owu.edu/snc.