Studies in composition with Adriana Hölszky, as well as in music theory with Prof. Dr. Franz Zaunschirm, Prof. Ernst-Ludwig Leitner, and Prof. Wolfgang Brunner at the Mozarteum in Salzburg, with a focus on “historical performance practices,” as well as music studies and dance studies at the Paris-Lodron University of Salzburg
Master’s degree in historical and contemporary compositional techniques with Prof. Jörg Mainka, Prof. Maria Baptist, and Prof. Jürgen Ganzer at the Hanns Eisler School of Music Berlin with a focus on the didactics and pedagogy of music theory, as well as composition /arrangement
Stimmer’s compositions have been performed by ensembles and orchestras such as the Françoise-Green Piano Duo, the Kammermusikensemble für Neue Musik Berlin (KNM), the Ensemble Zafraan, the Orchestra of the Komische Oper Berlin, and the Saxony Philharmonic Wind Orchestra
2017: involvement as a film composer in a silent film production for Arte/ZDF in collaboration with the Komische Oper Berlin (Kino Pravda, 2017)
Collaboration with the award-winning film directors Alexandra Kaufmann (Being You - Being Me, 2013) and Friederike Güssefeld (KAI, 2016)
As a music-graphics designer, collaborations among others with the Don Juan Archiv Wien, the Doblinger Verlag in Vienna, and the Sinfonietta Dresden
Publication of numerous books and CD reviews, among others with the Acht Brücken-Festival für Neue Musik in Cologne in 2015, and at klassik.com
From 2016 until 2018, lecturer at the Hanns Eisler School of Music Berlin in music-theory subjects; guest lectureship beginning in winter of 2018
Appointed in November of 2018 to teach music-theory core disciplines at the renowned Barenboim-Said Akademie in Berlin