As one of the leading countertenors, Kai Wessel has performed at music festivals and opera houses all over the world. For ten years, he was a regular guest at the Basel Theatre working with renowned stage directors i.e. Herbert Wernicke, Karin Beier, Claus Guth and Joachim Schlömer.
A number of contemporary Composers such as Mauricio Kagel, Heinz Holliger, Klaus Huber, Isabel Mundry, Chaya Czernowin, Georg Friedrich Haas, Jörg Widmann and Matthias Pintscher have written parts and works for him.
Kai Wessel is Professor for Voice and Historical Performance Practice at the University of Cologne for Music and Dance. He also teaches at the University of Bern Voice and Contemporary Vocal Literature.
In recent years, Kai Wessel has made a name for himself as a conductor , performing the Pastorale „Il Narciso“ by F.A.M.Pistocchi (the first performance in 300 years) , A.Caldara’s „Il Batista“ and J.S.Bach’s „St John’s Passion“.