Tre Pezzi per pianoforte Tas, Rudi 3 sonatines Tas, Rudi Sonatine Tas, Rudi De pianomicrobe, vol. 2 De Jonge, Petra De pianomicrobe, vol. 1 De Jonge, Petra Das schwarze Rössel Geuns, Jan M.C. Bellon, Werner Three impressions for piano Bellon, Werner