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.
Richard Campbell (classical musician) Richard John Campbell (21 February 1956 – 8 March 2011) was an English classical musician, best known as a founder member of the early music ensemble Fretwork and for his newer association with the Feinstein Ensemble, specialising in historically accurate performance of 18th-century music.