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.
Andrew Pryce Jackman Andrew Pryce Jackman (13 July 1946 – 16 August 2003) was an English keyboardist, arranger and composer. He was in The Syn with bassist Chris Squire (later of Yes). Jackman subsequently worked on Squire's solo album "Fish Out of Water" (1975), his single "Run with the Fox" (1980), on the Yes album "Tormato" (1978) and on "The Steve Howe Album" (1979).