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||1905 – Paris: Henri Lemoine|
|Genre Categories||;; ; ;|
|Work Title||Romance for Flute and Piano|
|Opus/Catalogue NumberOp./Cat. No.||Op.41|
|First Publication.||1905 – Paris: Henri Lemoine|
|Composer Time PeriodComp. Period||Early 20th century|
This work (also others by Brun, e.g. his passacaille, premiered by Barrère) is mentioned in books/essays on Barrère (the dedicatee) (Toff, Monarch of the Flute : The Life of Georges Barrere) and on Himie Voxman.
In the 1905 Bibliographie (misfiled though it is at Google Books as Darwin and modern science: essays in commemoration of the (page 254.) ).