Reitmaier completed his studies in clarinet performance at the Mozarteum University Salzburg with Alois Brandhofer and at the Musik und Kunst Privatuniversität der Stadt Wien with Matthias Schorn [de] with distinction.
In June 2013, Reitmaier made his debut at Carnegie Hall/Weill Recital Hall with the Mahler String Quartet.
[2] Other appearances include the ORF programme Barbara Rett [de] meets..., Malta/Gozo Victoria Arts Festival, Neubeurer Woche, Salzkammergut Festwochen Gmunden, Manoire de Lebioles and the Austrian Cultural Forum London.
In 2018, Reitmaier released the CD "Klarinettenquintette Mozart,Reger,Leitner" together with the Auner Quartett on the Gramola Vienna label.
The world premiere followed in April 2016 (concert hall arlberg 1800) with the Salzburg Chamber Soloists under the conduct of Lavard Skou-Larsen.