| 1942 |
Born in Buren, Netherlands |
| 1970 |
Degree Conservatory of Music, Arnhem, Netherlands, for Clarinet, Saxophone, Bass Clarinet |
| 1971 |
Teacher Music School in Doetinchem, Netherlands, Clarinet, Saxophone and Ensembles for Contemporary and Folk Music |
| 1972-1984 |
Courses and Projects at the Institute for Sonology, Utrecht, The Netherlands; playing in ensembles for contemporary music and in rockbands. |
| 1984/1985 |
Living in Melbourne, Australia; research on music and culture of Aborigenes; co-founder of IASPM-Australia; teacher of saxophone and clarinet at Methodist Ladies College. |
| 1985 |
Various positions on the Board of the IASPM –Benelux (International Organization for the Study of Popular Music), organizing symposia, giving lectures and publishing articles on punk and hardrock |
| 1989 |
MA Degree (Doctoraal Examen, with title Drs (Doctorandus) in Musicology at Utrecht State University, Utrecht, The Netherlands. MA thesis: “Time and Music in the 20th Century”. |
| 1987-1992 |
Research- and recording trips in Morocco, Bulgaria, Tunesia, and free-lance work for radio. |
| 1992 |
First research trip to Tajik Badakhshan : Ismaili music and culture. |
| 1993 |
Second research trip to Tajik Badakhshan |
| 1994 |
Research trip to Northern China: muslim ethnic minorities |
| 1996 |
Research trip to Northern Afghanistan |
| 1998 |
Research trip to Tajik Badakhshan: project for (and sponsored by) the Institute of Ismaili Studies (IIS) in London, a research branch of the Aga Khan Foundation. |
| 2000 |
Research trip to Bulgaria: music and culture of Pomak minority. |
| 2001 |
Research trip to Afghan Badakhshan ; Ismaili music and culture |
| 2003 |
Second research trip to Afghan Badakhshan (sponsored by the IIS) |
