Known as an international soloist on the modern horn as well as on the natural horn, Ab Koster has been giving masterclasses all over the world for more then 35 years. About 120 students successfully graduated under his guidance at the "Hochschule für Musik und Theater" in Hamburg, Germany.

More information about his biography, masterclasses and CD recordings you will find on his homepage: www.ab-koster.de

For 2020 he is invited for masterclasses and festivals in Germany, Italy, Portugal, Paris, Holland and Austria.