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 1924 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||1916, Amsterdam|
|Genre Categories||;; ; ;|
|Work Title||Cello Sonata|
|Alternative. Title||Sonate (no.1) pour violoncelle et piano|
|I-Catalogue NumberI-Cat. No.||ISD 1|
|Year/Date of CompositionY/D of Comp.||1916, Amsterdam|
|First Publication.||1922 – Paris: Éditions Maurice Senart|
|Composer Time PeriodComp. Period||Early 20th century|
|Piece Style||Early 20th century|
As there is a 2nd, published and recorded sonata, inserting no.1 in alt title.