Karlheinz Stockhausen (1928-2007) belongs to the group of European composers who started their professional lives in the early 1950s, gaining important exposure at the summer program in Darmstadt (Pierre Boulez, Luigi Nono and Henri Pousseur among them). This group was in many ways similar to its counterpart in New York (Cage, Brown, Feldman, and Wolff). The main difference lies in the generous and important support the European composers received in comparison with meager options available to Americans. This allowed the European composers to realize works on an unprecedented scale throughout the 20th century. For example, Stockhausen was able to produce huge projects such as compositions for multiple orchestras and choirs, including Gruppen (1955-57) and Carré (1959-60).