are Richard Hagopian and Onno Tunç both musicians ?
Onno Tunç Ohannes Tunçboyacıyan (a.k.a. Onno Tunç; Armenian: Օհաննես Թունչբոյաջյան ; December 20, 1948 - January 14, 1996) was a leading Armenian-Turkish musician, working mainly as a composer and an arranger. Tunç also played bass guitar and occasionally double bass, contributing to the albums of several musicians. He was the elder brother of musician Arto Tunçboyacıyan.
Malin Hartelius Malin Hartelius (born 1 September 1966) is a Swedish soprano who performs regularly with conductors such as Nikolaus Harnoncourt, Ton Koopman, Riccardo Chailly, Sir John Eliot Gardiner, Peter Schreier, Herbert Blomstedt, and Frans Brüggen. She has collaborated with orchestras like the Oslo Philharmonic Orchestra, the Tonhalle Orchester Zurich, the San Francisco Symphony, and the Concentus Musicus Wien.