Markus Zahnhausen (1965–2022) was a German recorder player and composer.
Born in Saarbrücken, Zahnhausen studied at the Richard-Strauss-Konservatorium München with Hermann Elsner. He also learned Slavic studies and musicology at the University of Trier and the Ludwig-Maximilians-Universität München. In October 2002, he began teaching recorder at the Hochschule für Musik und Theater München. From 2010 to 2012, he held a visiting professorship at the University of Music and Performing Arts Graz. He was a guest lecturer at the Carl Nielsen Academy of Music in Odense, the Royal Danish Academy of Music, the Birmingham Conservatoire, the Grieg Academy of the University of Bergen in Norway, the Folkwang University of the Arts in Essen and the Wichita State University in the United States.
He was active as a performer of ancient and modern recorder music in concerts, radio, television and CD productions as well as festivals and concert series. He performed among others in Russia at the “Moscow Autumn” and the “St. Petersburg Spring”, in Great Britain at the “Exhibition of Early Music”, as well as in Iceland, Tatarstan and the Urals. He made guest appearances with the Bavarian State Opera Orchestra at the Munich Opera Festival under the direction of conductors Ivor Bolton, Harry Bicket and Joshua Rifkin.
His first String Quartet Still Life was premiered by the Leipzig Gewandhaus Quartet in March 2003. In October 2003, he made his debut in the United States and was a guest lecturer at Wichita State University.
In addition to his musical activities, Zahnhausen worked as a music journalist for Bayerischer Rundfunk, for the Bayerische Akademie der Schönen Künste and for specialist journals. As editor he was responsible for the series “Neue Blockflötenbibliothek” of the Möseler-Verlag in Wolfenbüttel. He was the initiator of new recorder works by the composers Harald Genzmer, Günter Kochan, Walter Mays, Elis Pehkonen, Rodion Shchedrin, Hans Stadlmair, Boris Tishchenko, Atli Heimir Sveinsson, Þorkell Sigurbjörnsson and Ruth Zechlin.
Zahnhausen was an officially licensed amateur radio operator, holding a German class E radio license. His callsign was DO8GZ. Being a professional musician, learning and actively using Morse code (CW) was comparably easy for him and thus became one of his ham radio pastimes.