Since this work was first published after 1922 with the prescribed copyright notice, it is unlikely that this work is public domain in the USA. However, it is in the public domain in Canada (where IMSLP is hosted), the EU, and in those countries where the copyright term is life+70 years or less.
|Composition Year||1889 May|
|Genre Categories||; ; ;|
|Work Title||Carnaval de Vienne|
|Alternative. Title||(Humoresque) sur des thèmes de Johann Strauss pour piano|
|I-Catalogue NumberI-Cat. No.||IMR 1|
|Year/Date of CompositionY/D of Comp.||1889 May|
|First Publication.||1925 (possibly n.d.)|
|Dedication||To Mr. and Mrs. Berthold Neuer in friendship.|
|Composer Time PeriodComp. Period||Romantic|
Humoresque on themes of Johann Strauss.
Question - Is the copyright date on the first-edition score? Library catalogs give  suggesting this was not the case. - Schissel