 Concentrating on an ensemble of percussion instruments with and without definite pitches, originally certainly born out of the fascination that the orchestra's only still evolving group exercised on 20th-century composers, also appears to be a veritable patent solution for a composer who is interested in creating pitch organizations had never been a central concern.The idea of a differentiated cooperation based on the division of musical functions, which has distinguished the orchestra of Western art music that has grown organically over the centuries, appears in the orchestra of Orff’s operas on Hölderlin’s translations from Sophokles transposed on instrument constellations that were previously unknown to European art music.In the score of "Antigonae", six grand pianos and a group of xylophones, which were mostly given only marginal tasks in the traditional orchestra, take on the role that the group of strings had in the orchestration of Viennese classical music.