(b Berlin, 1902; d London, 1949). Ger.-born musicologist who settled in Eng., 1934. Compiled Annals of Opera 1597–1940 (Cambridge 1943, rev. ed. Zurich 1954 and 1978, by H. D. Rosenthal) which lists details of 4,000 opera perfs. in chronological detail.
From The Concise Oxford Dictionary of Music in Oxford Reference.