Karlheinz Stockhausen was a German composer born on August 22, 1928, and he passed away on December 5, 2007. He is widely regarded as one of the most influential figures in 20th-century music, known for his pioneering work in electronic music and avant-garde compositions. Stockhausen's innovative techniques and concepts, such as spatialization and the use of live electronics, transformed the landscape of contemporary music. Throughout his career, Stockhausen created a diverse range of works, including operas, orchestral pieces, and chamber music. His compositions often explored complex structures and new sound possibilities, making him a key figure in the post-war avant-garde movement. Notable works include Gesang der Jünglinge and the opera Licht, which reflect his unique vision and artistic philosophy.