Hans Hassler was born in Switzerland in 1945. He studied accordion with Mogens Ellegaard in Copenhagen, and later learned to play clarinet, piano, and guitar. Hassler has performed musical styles ranging from opera to Dixieland. He used to perform in Zurcher Kammerorchester, and also recorded with the avant-jazz group Habarigani and -- most notably -- Mathias Ruegg's Vienna Art Orchestra and Swiss Art Orchestra. Hassler played in Ivano Torre Quintetto, Beat Follmi, and with Gebhard Ullmann during the mid- to late '90s.
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