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Encyclopedia of Austria:
Zwölftontechnik |
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Encyclopedia of Austria:
Mahler, Anna |
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Encyclopedia of Austria:
Motte, Diether de la |
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Encyclopedia of Austria:
Oper |
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Encyclopedia of Austria:
Schreker, Franz |
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Encyclopedia of Austria:
Universal Edition, UE |
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Music Lectures Online:
Schönberg und die Zwölftonmusik |