[1] From 1962, de la Motte taught composition and music theory at the Musikhochschule Hamburg and was appointed a professor there in 1964.
In 1988, he accepted a call as professor of music theory, a new chair at the Wiener Musikakademie, where he taught until 1996.
[1] The compositional output of de la Motte encompasses almost all genres and ranges, from traditional forms such as stage work, orchestral, vocal and chamber music to experimental events, performances and pieces with ground-breaking ideas.
[4] His opera Der Aufsichtsrat, to a libretto by Rolf Schneider [de], was premiered at the Staatsoper Hannover on 1 February 1970.
[2][3] His archive is held by the Ackademy of Arts, containing autographs and prints of both compositions and written publications such as monographies, essays and lectures, his correspondence with Gottfried von Einem, Wolfgang Fortner, Hans Werner Henze, Friederike Mayröcker and Bernd Alois Zimmermann, concert programs, reviews and photographies.