Being of Dutch descent, but nevertheless fluent both in English and German, I lectured abroad on many occasions, including at Brandeis University (1988), Cornell University (1999) and at the International Mozart Congress Salzburg (1991).

I was also a visiting professor at many schools of music, mostly leading workshops on how to perform Harmoniemusik; institutes included the Latvian National Music Academy (Riga, 1999), the Royal College of Music (London, 1998), the University of Oklahoma (2005), the Curtis Institute (Philadelphia, 2007), as well as at the WASBE and CBDNA conferences (Luzern (2001), Minneapolis (2003), Singapore (2003), Killarney (2007) and at my own St. Moritz Harmoniemusik Academy (2007 and 2010).