Gerd Zacher (b. Meppen on the Ems River, Germany, July 6, 1929) is a German composer, organist, and writer on music. He specializes in contemporary compositions, many of which feature extended techniques, and are written in graphic or verbal scores. He has interpreted the scores of numerous contemporary composers, including John Cage, Juan Allende-Blin, Mauricio Kagel, György Ligeti, Hans Otte, and Isang Yun. Wikipedia
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