Ab Koster was born in The Hague, Holland as the son of a Dutch hornist. He completed his studies at the Royal Conservatory of Music in his hometown with the honor of "Prix d'Exellence". He then continued

Starting in 1977, Ab Koster held the position of principal horn in the NDR Symphony Orchestra in Hamburg, Germany until 1990. In order to accept the many invitations as a soloist and chamber musician,

Ab Koster press reviews Westdeutsche Allgemeine Zeitung:„Mann könnte zum Fan der Horn-Musik werden, wenn man dem niederländischen Virtuosen lauscht. Ab Koster dient als Vorbild für

Ab Koster recordings / discography