2011 : jury-member of the concours artistique de Epinal (F)   http://www.concours-artistique-epinal.org/

2008-present: Director of Violinatics

1990-present: composer / arranger for de Haske Publications / Hal Leonard.

1998-present: External editor strings for de Haske Publications / Hal Leonard.

1991-present: introductional speaker for concerts of Het Brabants Orkest, Gelders Orchestra, Flemish Radio Orchestra.

1988-present: freelance violinist in various orchestras, including the European Philharmonic Orchestra(Brussels), Sebestian Strings, Catherine Consort, concerts with singer-guitarist Ralph van Manen, several radio shows, several CD recordings, studio violinist for radio-TV

1991-1999: teacher of music theory at the Schumann Akademie, formerly called MOS  (Utrecht and The Hague)

1999-2010: violin teacher, conductor, symphony orchestra, chamber music teacher, theory teacher at ART4U Veldhoven.

1988-2009: violin teacher, music theory , professor of chamber music at the Center for Music and Dance in Valkenswaard