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||1956 February 2|
|Genre Categories||;; ; ;|
|Work Title||Piano Concerto No.4 ('Incantation')|
|Opus/Catalogue NumberOp./Cat. No.||H.358 (Thompson 327)|
|I-Catalogue NumberI-Cat. No.||IBM 30|
|Year/Date of CompositionY/D of Comp.||1956 February 2|
|First Performance.||1956 October 4
|Average DurationAvg. Duration||20 minutes|
|Composer Time PeriodComp. Period||Modern|
|Instrumentation||piano and orchestra
|External Links||Wikipedia (French) ; Wikipedia (Japanese)|
Published in a duet reduction by Karel Solc by Supraphon/Bärenreiter in 1972.