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Austrian librarian and musicologist.

Career Summary

Haas served as an assistant to Guido Adler at the Musikhistoriches Institut of the University of Vienna 1908/09, and worked as a conductor 1910-14; from 1914 he was secretary to the series Corpus scriptorum de musica medii aevi and the Denkmäler der Tonkunst in Österreich. After service in World War I, from 1918 he worked in the Musiksammlung (Music Collection) of the Österreichische Nationbibliothek (Austrian National Library) in Vienna, becoming its head in 1920 and remaining in that post until 1945. In 1928 he was awarded the Silver Medal for his work (OJ 11/54, [24]).

His fields of speciality were Baroque music, the history of opera, and the life and work of Mozart and Bruckner; he wrote several books, including Aufführungspraxis der Musik (Performance Practice in Music) (Postdam, 1931), and books on Gluck (1925), Viennese opera (1926), Mozart (1933), and Bruckner (1934), as well as numerous journal articles.

Haas and Schenker

In 1927, Haas became simultaneously Curator of the Archiv für Photogramme musikalischer Meisterhandschriften, founded by Anthony van Hoboken, with which Schenker was closely associated (the three men comprised its curatorial board).

Correspondence with Schenker

Correspondence from Haas to Schenker survives at OJ 11/32 (1927-35: 19 items) and OCA/294 (1934: one item). Correspondence from Schenker to Haas survives at PhA/Ar 56,[1]‒[5] (1927‒32: 5 items).

Sources:

  • NGDM2 (2001 and online)
  • MGG

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Correspondence

Diaries

Lessonbooks