Detlev Müller-Siemens (born 30 July 1957) is a German composer and conductor.
[1] He studied piano, composition and theory at the Musikhochschule Hamburg from 1970 with Günter Friedrichs.
Back in Hamburg, he studied piano with Volker Banfield, and conducting with Christoph von Dohnányi.
[2] In 1981, he was an assistant at the Paris Opéra for Ligeti's Le Grand Macabre.
[2] An engagement with the work of Samuel Beckett since 1999 has been reflected in his opera Bing, the composition the space of a step for orchestra as well as in the chamber music works Light blue, almost white and ... called dusk.