are Richard Hagopian and Onno Tunç both musicians ?
Richard Hagopian Richard Avedis Hagopian (born 3 April 1937) is an American Oriental-style "oud" player and traditional Armenian musician.
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).