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.
Håkan Hardenberger Ulf Håkan Hardenberger (born 27 October 1961 in Malmö) is a Swedish trumpeter. Taking up the trumpet at the age of eight under the guidance of hometown teacher Bo Nilsson, Hardenberger pursued further studies at the Paris Conservatoire, with Pierre Thibaud, and in Los Angeles with Thomas Stevens. He has quickly established a career as a virtuoso who possesses not only an impressive command of the classical repertoire, but has also commissioned many new works from contemporary composers, including Harrison Birtwistle, Toru Takemitsu, Hans Werner Henze, Rolf Martinsson, Mark-Anthony Turnage, Heinz Karl Gruber, Benjamin Staern, Brett Dean, Tobias Broström and Arvo Pärt. Hardenberger has been called "the cleanest, subtlest trumpeter on earth" by "The Times".