Willem van Twillert (1952) received his musical education at the Sweelinck Conservatory in Amsterdam, with Piet Kee (organ) and Willem Bronx (piano). In 1976 he received his degree in Church Music and in 1978 his degree in Performance with distinction, and special mention for improvisation.
A scholarship enabled him to specialize in early music with Gustav Leunhardt (organ), Anneke Uittenbosch (hamsichord) and Klaas Bolt (historical style improvisation). In 1976 he was the first Dutchman who made it to the finals of the French competition “Grand Prix de Chartres”.

Intensive study of the 18th century German organ repertoire has been of importance for Van Twillert’s style compositions for organ. Dutch editors have published his music. His most extensive series are the “Organ Composers of the 18th and 19th Centuries”.
In 1991 van Twillert was invited by the “American Guild of Organists” to give recitals and a lecture in the U.S.A. on the history of Dutch psalm singing. In I994 and 1995 he played a series of organ recitals in Italy, and in 1996 he was invited to play some organ recitals on invitation of the “Accademia di Musica Italiana per Organo” in Pistoia and in Germany.

His organ literature has appeared on several CDs and radio recordings. Furthermore, he regularly plays at both Dutch and foreign organ concert platforms.
Willem van Twillert has a private music school in Bunschoten and is the organist of three cooperating congregations in Amersfoort. He is also one of the editors of the Dutch magazine De Orgelvriend.