Wim van Dullemen is a musician who studied with the Dutch composer & piano virtuoso Wolfgang Wijdeveld. He met the Gurdjieff work in 1964 & for 20 years played the Gurdjieff-deHartmann compositions for Movement classes led by direct pupils of Gurdjieff. Interviewed widely on this subject, his numerous articles have been published both in the U.S. & Europe. Since 1995 he has devoted himself entirely to this work. Presently, he leads a group on Gurdjieff's teachings & regularly gives courses & performances in Movements in many countries, most recently in Turkey during the yearly festival of Mevlevi Dervishes.