Mark van de Wiel explained

Mark van de Wiel (born 1958, Northampton)^{[1] [2]} is an English clarinettist, principal clarinettist of the Philharmonia Orchestra and the London Sinfonietta, and a teacher at the Royal Academy of Music.

Notes and References

1. http://www.morgensternsdiaryservice.com/WebProfile/van-de-wiel_m_1377.shtml Profile
2. http://www.philharmonia.co.uk/orchestra/players/14399/mark_van_de_wiel Bio