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.
Gogo (Canadian musician) Paul Roland Gogo (born April 24, 1965), known as Gogo, is a Canadian rock-and-roll keyboard player, and multi-instrumentalist, best known for being the keyboardist of the Canadian rock band Trooper. His career has also included stints with rock vocalist Paul Laine.