Career
While studying classical clarinet, Mahall shifted towards contemporary music, improvisation and jazz. He carried out several projects and published CDs, about the work of Eric Dolphy and others Moreover, he performed with Conny Bauer, Lee Konitz, Barry Guy, Karl Berger, Paul Lovens, Sven-Åke Johansson, Radu Malfatti, Editor Schuller, Ray Anderson, Kenny Wheeler, Hannes Bauer and many others
Mahall performed at the Free Music Festival Jazz à Mulhouse in 2008, at the Moers Festival, the JazzFest Berlin, the Leverkusener Jazztage and jazz festivals in New York City, Amsterdam, München, Würzburg, Nürnberg, and he toured in Portugal, southern and eastern Africa.