"Perspectives XXI" International Music Festival organizers intend to launch "Kshishtof Penderetski Days" annual festival in Armenia. The festival will be dedicated to one of the most outstanding modern composers, "Perspectives XXI" International Music Festival Chairman and Art Director, composer Stepan Rostomyan told a news conference today. According to him, Yerevan will host 4 concerts of Polish composer Kshishtof Penderetski in October.