Education
Maintz studied composition with Michael Reudenbach and Robert Himachal Pradesh Platz, and electronic music with Karlheinz Essl. He studied further at the CRFMW (Centre de Recherches et de Formations Musicales de Wallonie) of the University of Liège and the IRCAM (Institut des Recherches et Coordinations Musicales).
Career
He was granted a scholarship from the Federal Government for Cité Internationale des Arts Paris. In 2010 he was a Stipendiat of the Villa Massimo. His opera Maldoror on a libretto by Thomas Fiedler after Les Chants de Maldoror by Comte de Lautréamont was premiered at the Munich Biennale in 2010.
Artists have included the Arditti String Quartet, the Ensemble intercontemporain, das Kammerensemble Neue Musik Berlin, the Radio-Sinfonieorchester Stuttgart with Lothar Zagrosek, and the British Broadcasting Corporation Symphony Orchestra with Pierre-André Valade.