1993 operas

thumb|275px|Karlheinz Stockhausens grave with the score to LICHT . Licht (Light), subtitled "Die sieben Tage der Woche" (The Seven Days of the Week), is a cycle of seven operas composed by Karlheinz Stockhausen between 1977 and 2003. The composer described the work as an "eternal spiral" because "there is neither end nor beginning to the week." Licht consists of 29 hours of music.