Sibylle Mahni, a Swiss citizen was born in Sweden, moving to Germany at the age of seven. She began her musical studies at the age of four learning the piano which she pursued intensely until the age of 15 under the guidance of, amongst others, Prof.Karl-Heinz Kämmerling. With the piano and trumpet she soon won her first prizes at competitions, followed only a few years later by success as a hornist.
Performing with various youth orchestras and as an artist of the “Villa Musica” foundation, as well as being a scholarship holder from the German National Academic Foundation (Studienstiftung des Deutschen Volkes) were some of the highlights of Sibylle’s tertiary studies at the Frankfurt State Academy of Music and the Performing Arts (Hochschule für Musik und Darstellende Kunst Frankfurt am Main) under Professor Marie-Luise Neunecker. In 2002 she graduated with the post-graduate performance degree “Konzertexamen”.
From 1997 till 2016 Sibylle was solo-hornist in the opera orchestra in Frankfurt.
Sibylle Mahni has had outstanding success at several highly renowned international competitions including the International Horn competition in Leeuwarden, The Netherlands, at the “Peter Damm Competition” in Iserlohn, Germany and at the ARD International Music Competition of the German national broadcaster in Munich (Internationaler Musikwettbewerb der ARD). Following these achievements she has appeared as soloist with many leading orchestras including the Stuttgart Radio Symphony Orchestra, the Munich Symphony Orchestra, the International Bach Academy Stuttgart, the Württemberg Chamber Orchestra Heilbronn and the Britten Sinfonia. Sibylle has worked with leading conductors such as Oleg Caetani, Toshiyuki Kamioka and Helmuth Rilling. As an internationally recognized soloist she has appeared in Sweden, Switzerland, The Netherlands, Croatia, China and the USA to name a few.
Chamber music is an important passion of Sibylle Mahni which has led her to perform at such festivals as the chamber music festival ‘Spannungen’ in Heimbach, the Moritzburg Festival near Dresden, the Hitzacker Summer Music Festival and the Freiburg ‘Albert Konzerte’. Amongst Sibylle’s chamber music partners are prominent musicians such as Christian Tetzlaff, Isabelle van Keulen, Kirill Gerstein, Lars Vogt and Sharon Kam. She has taken part in the premiere of chamber works from Jörg Widmann, Brett Dean, Detlev Glanert and others. In 2014 Sibylle Mahni joined the Ma’a lot-Quintett, one of the leading wind-ensembles in the world. Together with Thomas Duis and Laurent Albrecht Breuninger she regularly performs the duo- and trio-repertoire.
Currently Sibylle is professor for horn at the Hochschule für Musik Würsburg. In addition she lectures at numerous international master classes including the International Horn Symposium in Kalamazoo, Michigan, and the Jerusalem Music Academy.