Leadership, governing, communication and corporate social responsibility are considered by Jules to be important values. Therefore he has been a member on many types of boards. At the moment he is chairman of the International Jewish Music Festival. It is a charitable foundation based in the Netherlands dedicated to broadening the scope of Jewish music through the organization of concerts and various educational activities as well as new initiatives such as the Jewish Music Competition (in 2008, 2010, 2012 & 2014). IJMF aims to promote the growth and development of performers and audience alike, fostering quality and diversity in Jewish music in the Netherlands and worldwide.
The International Jewish Music Competition in 2014 will be held between September 11th and 14th in both the Uilenburger Synagogue and the Muziekgebouw aan ’t IJ (Amsterdam). Jules will also be chair of the jury.