At music school, Stockhausen studied the works of major contemporary composers, principally Bartók, Schoenberg, and Stravinsky. His graduation thesis was on Bartók's Sonata for two pianos and percussion. This came to the attention of Herbert Eimert at Cologne Radio, who arranged for a radio script to be made of the thesis, and for Stockhausen's work to be broadcast to the radio audience. Eimert also arranged for the 23-year-old Stockhausen to give several talks on radio on the...