At the window on Lenna porch, Luthier Gersh has been helping strings musicians in Chautauqua Institution produce sound for 11 years by Flora Junhua Deng on August 24, 2018 share Igor Gersh works Aug. 22 at Potter Violins in Washington D.C. where he is working part-time following his time at Chautauqua this season. JEROME SKISCIM / SUBMITTED PHOTO Igor Gersh is a professional viola player