| 1951 | Born on Wednesday January 24th in Kerkrade (Netherlands) |
| 1957 | Primary school: St Bernardus Heerlen |
| 1963 | MULO (Secondary Extended Lower Education): St. Henricus, Heerlen |
| 1967 | First self-taught music studies (Classical Guitar), first explorations in composing |
| 1967-69 | HBS (Higher Citizen School): EpiscopalTeacher School Christus Magister |
| 1968-69 | Piano lessons (private teacher Mrs Pijpers), composes |
| 1969-72 | Pedagogical Academy Heerlen |
| 1969-72 | Piano lessons Music School Brunssum (Winand van den Pitte) |
| Study on Harmony (Music School Brunssum: Winand van den Pitte) | |
| Composes: performances in private circle | |
| 1972-73 | Preparation for studying at the Academy of Music (private lessons: Winand van den Pitte) |
| 1973-78 | Study Music Theory (as main subject) at the Maastricht Academy of Music with Matty Niël: graduated |
| 1975-80 | Composition (1975-80) at the Maastricht Academy of Music with Matty Niël, graduated (Prize for Composition) |
| 1978-2003 | Lecturer Harmony (in writing and at the piano)/Contrapunt/Analyse and General Music Theory at the Maastricht Academy of Music |
| 1980-present | Enters in public life as a composer (click here for a full list of his works) |
| 1980-present | Member of BUMA/STEMRA |
| 1980-present | Member of GENECO (Society of Dutch composers, now New GENECO) |
| 1987-present | Co-founder of the Foundation Limburg Composers |
| 1987-90 Secretary | |
| 1990-92 Chair | |
| 1992-95 Member | |
| 1995-2001 Board Member | |
| 2001-present Member | |
| 1989-96 | In the framework of a collaboration between the University College Maastricht (Academy of Music) and Maastricht University (faculty 'Letteren en Kunst', Art and Culture) member of the Working Group for the preparation and implementation of the summer course Opera and Culture. |
| 1989-2015 | Professor Composition Maastricht Academy of Music |
| 1989-2000 | Member of team 'Contemporary Music' of Maastricht Academy of Music |
| 1989-2010 | Member/Chairman of the team of the Maastricht Academy of Music Festival, projects-in the presence of the composers: |
| 1990 H. Pousseur | |
| 1991 Expressionism (no composer invited) | |
| 1992 H. Górecki | |
| 1993 Eastern Europa, G.Katzer | |
| 1994 Faust/Turning Points K. Boehmer, H. Pousseur | |
| 1995 England, A. Goehr | |
| 1996 Quote and Revision A. Vieru/W. Miechel | |
| 1997 Jewish-Israeli music Y. Leef | |
| 1998 Tradition and Innovation (no composer invited) | |
| 1999 Finnish Music P. Nordgren | |
| 2000 5 Centuries Music in Maastricht (no composer invited) | |
| 2001 Portuguese Music, A. Delgado | |
| 2002 America (no composer invited) | |
| 2003 Iceland, S. Sigurdbjörnsson en M. Thorkelsdottir | |
| 2004 Improvisation (no composer invited) | |
| 2005 Korea, Yung Jo Lee | |
| 2006 D. Shostakovich/E. Lutyens (no composer invited) | |
| 2007 A. Webern/F. Schubert (no composer invited) | |
| 2008 I. Stravinsky (no composer invited) | |
| 2009 Les Synthétistes (no composer invited) | |
| 2010 Otto Ketting/Otto Ketting | |
| Since 2010 no festivals have been organised | |
| 1990-2015 | Professor Theory Maastricht Academy of Music |
| Also: History of Music Theory, Literature connected to the main subject and -related Didactics | |
| 1993-96 | Co-founder and member of the Internal Artistic Advisory Board of the Maastricht Academy of music |
| 1992-99 | Lectures at the Maastricht University Faculty Arts and Culture |
| 1993-95 | Praktikum in Music (twentieth century) for Maastricht University (Faculty Arts and Culture) |
| 1996-2000 | Introductions to the concerts of the Limburg Symphony Orchestra |
| 1999-present | Member of the Dutch Flemish Society for Music Theory |
| 2000-15 | Lectures Music History of the Twentieth Century at the Maastricht Academy of Music |
| 2003-15 | Staff member Maastricht Academy of music: Head of the Classical Department |
| Also: Professor Composition, Theory, Music History (Twentieth Century) | |
| 2003-12 | Chairman of the Board of Examinations (Music Classical) |
| 2003-05 | Participant ELIA (European League of Institutes of the Arts) conferences |
| 2004 | Lectures in the University Jeonju University (Jeonju) and Yonsei University (Seoul) in Korea with the theme 'Gestik und Rhytmische Motivik in Anton Webern's Op 27. Nr 3': especially for the students of the Composition Departments |
| 2004-08 | Member of the ‘Kenniskring’ (knowledge group) of the Lectoraat 'Autonomie en openbaarheid in de Kunsten’ (research group 'autonomy and public acces in the arts’) of Zuyd University' Studies on Bourdieu theory to question the validity of judgements in the arts |
| 2006-07 | Member of the Consult Circle: Artistic Research Zuyd University and Maastricht University |
| 2007 | Module Research (Dr. H. Smeijster) successfully completed |
| 2008-14 | Participant annual congresses AEC: Aarhus (Den)-Maastricht-Warsaw-Sevilla-St Petersburg-Palermo-Budapest |
| 2009 | Responsible for the organisation of the share the Maastricht Academy of Music took into the AEC (Association Européenne des Conservatoires, Académies de Musique et Musikhochschulen) Congress 2009 in Maastricht |
| 2010-present | Present Member of the Board Matty Niël Foundation |
| 2011 | Master classes in composition at the Ho Chi Minh City Conservatory, Ho Chi Minh City in Viet Nam for the students of the Department of Musicology, Conducting and Composition |
| 2013-17 | Co-founder of CM Foundation (Conservatorium Maastricht Foundation), Member of both the Board and the Working Group |
| 2015 | Retired from all his functions at the Conservatory (retirement) |
| 2022-today | Board member of the Conservatorium Maastricht Foundation |