WoO

{{Short description|Catalogue of Beethoven compositions without an opus number}}

{{other uses|Woo (disambiguation)}}

{{Lang|de|Werke ohne Opuszahl|italics=no}} ("Works without opus number") (WoO), also Kinsky–Halm Catalogue, is a German musical catalogue prepared in 1955 by Georg Kinsky and {{Ill|Hans Halm|lt=|de|Hans_Halm_(Musikwissenschaftler)|WD=}},{{cite book|last=Dahlhaus|first=Carl|title=Ludwig Van Beethoven: Approaches to His Music|year=1991|publisher=Oxford University Press|isbn=0198163991|page=241}} usually listing all of the compositions of Ludwig van Beethoven that were not originally published with an opus number, or survived only as fragments. The work was originally titled in German Das Werk Beethovens: Thematisch-bibliographisches Verzeichnis seiner sämtlichen vollendeten Kompositionen.

The abbreviation WoO is also used sometimes to refer to works without opus by other composers,{{cite web|last=Yale University|title=Thematic catalogs|url=http://www.library.yale.edu/cataloging/music/themcat.htm|publisher=Yale University Library|access-date=11 July 2013}} such as Johannes Brahms, Robert Schumann,{{cite web|last=Université du Québec|title=Identification des catalogues thématiques d'oeuvres|url=http://www.uquebec.ca/musique/oeuvres1.html|publisher=Université du Québec.ca|access-date=11 July 2013|archive-date=15 December 2012|archive-url=https://web.archive.org/web/20121215005319/http://www.uquebec.ca/musique/oeuvres1.html|url-status=dead}} Muzio Clementi, Louis Spohr, Joachim Raff, or Ferdinand Ries.{{cite web|last=Raff.org|title=Catalogue: WoO (Works without Opus Numbers)|url=http://www.raff.org/music/catalog/opus/woo.htm|publisher=Raff.org|access-date=11 July 2013|archive-date=17 May 2008|archive-url=https://web.archive.org/web/20080517054606/http://www.raff.org/music/catalog/opus/woo.htm|url-status=dead}}