Erwartung und Traumverlust is part of a short-opera that is based on Ryunosuke Akutagawa's short story Kesa and Morito. The instrumentation of the opera is instrumental ensemble, two voices, and live- and fixed media-electronics. Two parts of this opera are submitted as part of the thesis: a solo for voice, which is part of the second and third scene, and the fifth scene, which is an ensemble scene without voice.
Aufschlag is an open score for any four instruments. Performance details have to be determined in a rehearsal process similar to the theater context. It was written having a third person in mind, that acts as a mediator between the composer and the interpreters.