Helmut Lachenmann

Helmut Friedrich Lachenmann ( German: [ˈhɛlmuːt ˈlaxn̩man] ; born 27 November 1935) is a German composer of contemporary classical music , pianist and academic teacher. He taught, among others, at the Darmstädter Ferienkurse , the Musikhochschule Stuttgart and the Musikhochschule Hannover .

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