Ottensamer joined the orchestra of the
Vienna State Opera in 1979. He became principal clarinetist of the Vienna Philharmonic Orchestra in 1983. He joined the faculty of the
Universität für Musik und Darstellende Kunst in Wien in 1986, and subsequently attained the title of
Universitätsprofessor (University Professor) in 2000. He was a founder-member of such chamber ensembles as the
Wiener Bläserensemble (Vienna Wind Ensemble),
Wiener Virtuosen, and the
Wiener Solisten Trio. His elder son
Daniel Ottensamer (born 26 July 1986) became co-principal clarinetist with the Vienna Philharmonic alongside his father, and his younger son
Andreas Ottensamer (born in 1989) is principal clarinetist of the
Berlin Philharmonic. The three of them formed a clarinet ensemble, the Clarinotts. The Clarinotts' first album appeared in 2009, and their second album in 2016. Ivan Eröd composed a triple clarinet concerto for The Clarinotts, who premiered the work with the Vienna Philharmonic in January 2016. His widow Cecilia and his sons survive him. ==References==