Juries
National and international competitions with Ab Koster as member of the jury
International
Natural Horn Compeition in Bad Harzburg (1984, 1987, 1993)
Competition for Wind Instruments - Music Festival Friesland
(1995)
ARD Music Competition in Munich (1999, 2005, 2010)
Prague Spring Music Competition (2007)
National
National Competition in Haarlem (Netherlands 1986)
National Horn Competition in the Hague (Netherlands 1988)
National Horn Competition in Fritzlar (Germany 2001)
Ab Koster on the Jury for the 2005 ARD Competition in Munich
Ab Koster on the Jury for the 2007 International Competition in Prague.
