(b Vienna, 1889; d Vienna, 1967). Austrian musicologist. Librarian, music div., Austrian Nat. Library 1918–40 and of Vienna Univ. musicological institute. Worked with R. Haas from 1934 on collected works of Bruckner. Wrote books on Beethoven, Bruckner, Mozart, Schubert, Wolf, and Brahms, and ed. coll. of Bruckner's letters and other documentary sources.
From The Concise Oxford Dictionary of Music in Oxford Reference.