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.
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.