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.
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.