Among the possible ways to reconsider Utzon’s legacy, one can look at his strategies for variation and repetition in the light of the recent development of computer software, parametric modeling, computational techniques, digital fabrication and their application in architectural design and engineering. During the two weeks of the Utzon(x) Summer School 2013, twenty-five Danish and international students have worked on creating the Tetraleaf project displayed in the Utzon Center court yard and unfolded as a working process in the exhibition space. Enjoy!