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.
|First Publication||1912 or earlier|
|Genre Categories||;; ; ;|
|Work Title||Violin Sonata|
|Opus/Catalogue NumberOp./Cat. No.||Op.11|
|I-Catalogue NumberI-Cat. No.||IMC 2|
|First Performance.||1912 March or earlier|
|First Publication.||1912 or earlier|
|Dedication||A ma femme|
|Composer Time PeriodComp. Period||Early 20th century|
|Piece Style||Early 20th century|
Received its English premiere 14 January 1913 in Plymouth according to the Musical Times (February 1, 1913, page 118) (Harold Lake, piano/Percy Lowman, violin.) First performance was by March 1912. See(review of the Schott publication - mentions that the work was "exécutée au dernier concert des Compositeurs belges." Amusingly, an article later in the same volume, in a September 1912 issue, mentions that the sonata will be premiered in a autumn concert series in Paris, organized by Armand Parent. Perhaps the French premiere is meant. It is worth seeing that article also (p.529) if only because other (French?) premieres of interest are also listed, e.g. Victor Vreuls' piano quartet.)
Sonata copyrighted 1936 according to the Catalog of Copyright Entries (but that was no doubt a renewal. Still, it suggests _1911_ for copyright date.
According to the Library of Congress catalog, opus 11 was also assigned by Schott, in 1922, to a Chant élégiaque for violin or cello and piano. (Not having seen this it is possible that this was the slow movement of this sonata with a transcription for cello included. One source has this Chant composed in 1915, however. Odd.)