Marcus Schmickler, born in 1968, is a composer-performer of contemporary and computer-music. He resides in Cologne and in Vienna. Schmickler merges computer music, ensemble composition, performance and research. His multi-channel works have been performed on prestigious stages, creating unique auditory spaces. He explores techniques like Shepard tones and ring modulations, deepening his compositions through data sonification and otoacoustic emissions. Schmickler writes on computer music and has won several prizes, including the Rome Prize. He taught at Bard College, at Calarts and at Robert Schumann Hochschule and IEM. His compositions have been performed by renowned ensembles worldwide. http://www.piethopraxis.org.