ドナウエッシンゲン音楽祭
As a soloist, he has performed with major orchestras in Germany and abroad, including the Vienna Philharmonic Orchestra and Munich Philharmonic Orchestra, under conductors such as Valery Gergiev, Christoph von Dohnányi, Sylvain Cambreling and Kent Nagano. Widmann has premiered several clarinet concerti dedicated to him: in 1999 through "musica viva", he played "Music for Clarinet and Orchestra" by Wolfgang Rihm; in 2006 with the WDR Symphony Orchestra, "Cantus" by Aribert Reimann; and in 2015 "über" by Mark Andre at the Donaueschingen Festival. Widmann's core repertoire as clarinetist includes Boulez Dialogue de l'ombre double, which he performed on Pierre Boulez's 85th birthday in Paris.