Although fascinated by the concerts given by Pierre Boulez and Bruno Maderna with the Hague Philharmonic, he admits to having "no real grip" at that time on the musical avant-garde, and began to look around for other starting-points for his own music.
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In addition to his fascination with jazz, an important encounter at that time was with the music of Charles Ives, which taught him the value of inclusivity.
Ivana finished her bachelor composition studies with Marko Ruzdjak (2002), and her master studies in the Royal Conservatory of The Hague with Louis Andriessen, Gilius van Bergeijk and Diderik Wagenaar (2006).
Besides Andriessen, other composers who wrote for Hoketus include Michael Nyman, Huib Emmer, Diderik Wagenaar, Klas Torstensson, and Gene Carl.