How old would Klaus Thunemann be today?

Klaus Thunemann was a German bassoonist and academic teacher. He played as principal bassoonist of the North German Radio Symphony Orchestra, as a soloist and with a focus on chamber music. He taught at the Hochschule für Musik, Theater und Medien Hannover, the Hochschule für Musik Hanns Eisler Berlin, and in Madrid at the International Institute of Chamber Music and the Reina Sofía School of Music.