Hermann HeiÃ often operated under the pseudonym George Frauenfelder. In World War I he was a prisoner of war of the United States and then studied music (composition) in Frankfurt am Main until 1927. His main work focus was 12-tone music and electronic music. From 1928-33 HeiÃ taught at Spiekeroog, an island in the North Sea. In 1939 he married the dancer Maria Muggenthaler. In 1944 90% of his works was destroyed in an air raid on Darmstadt, but from 1946 he taught there as a lecturer. In 1948 HeiÃ was awarded the BÃ¼chner Prize. In 1955, he established one of the first electronic music studios in Germany.