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||1920 (Early)|
|Genre Categories||; ; ;|
|Work Title||Piano Sonata|
|Alternative. Title||Klaviersonate ; Sonate für Klavier|
|Opus/Catalogue NumberOp./Cat. No.||Op.17|
|Year/Date of CompositionY/D of Comp.||1920 (Early)|
|First Performance.||1920-12-16 in Berlin
|First Publication.||1920 (Melos I, No.20)|
1990 (SW V, 9)
1992 – Mainz: B. Schott's Sohne
|Average DurationAvg. Duration||20 minutes|
|Composer Time PeriodComp. Period||Modern|
Composition of first and at least part of theme and variations composed before Stretta.
Autograph of the Stretta published as supplement to Melos 1, no.20 (December 1920). Remainder of autograph score lost; first movement and Theme and Variations reconstructed from sketches by Bernhard Billeter for the supplement volume to SW V, 9 and the performing edition. See notes for Tanzstücke, Op.19.