It is very unlikely that this work is public domain in the EU, or in any country where the copyright term is life-plus-70 years. However, it is in the public domain in Canada (where IMSLP is hosted) and other countries where the term is life-plus-50 years (such as China, Japan, Korea and many others worldwide). As this work was first published before 1923 or failed to meet notice or renewal requirements to secure statutory copyright with no "restoration" under the GATT amendments, it is very likely to be public domain in the USA as well.
|Composition Year||1917 (see below)|
|Genre Categories||; ; ;; ; ;|
|Work Title||O canto do cisne negro|
|Alternative. Title||Song of the Black Swan ; Poema ballomístico|
|Opus/Catalogue NumberOp./Cat. No.||W122 (Cello), 123 (Violin)|
|I-Catalogue NumberI-Cat. No.||IHV 50|
|Year/Date of CompositionY/D of Comp.||1917 (see below)|
|Average DurationAvg. Duration||3 minutes|
|Composer Time PeriodComp. Period||Early 20th century|
|Piece Style||Early 20th century|
|Instrumentation||cello, piano (W122) / violin, piano (W123)|
|Extra Information||This piece was arranged from Naufrágio de Kleônicos, W111.|
Appleby gives 1948 as the date of composition but see below.
*This is a derived product and may have a later date of composition.
Kostellanetz made the cello/orchestra arrangement which may be the 1948 arrangement Appleby refers to. The score gives 1917 and can probably be gone by here.