Kayhan Kalhor is an Iranian kamancheh virtuoso and composer whose work has been celebrated around the globe. Julia Gunther for NPR hide caption
Kayhan Kalhor Kayhan Kalhor artist page: interviews, features and/or performances archived at NPR Music
Kayhan Kalhor
Syrian singer Omar Souleyman (performing here in Malmö, Sweden, in August 2016) is among the musicians whose performances in the U.S. have been left in limbo. Pacific Press/LightRocket via Getty Images hide caption