Free public domain sheet music from IMSLP / Petrucci Music Library
This work likely not be in the public domain in the US (due to first publication with the required notice after 1922, plus renewal or "restoration" under the GATT/TRIPS amendments) in the EU and those countries where the copyright term is life+70 years. However, it is public domain in Canada (where IMSLP is hosted) and in other countries (China, Japan, S. Korea) where the copyright term is life+50 years.
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Mainz: B. Schott's Söhne, No.3970, 1942. Plate 36973.
Public Domain - Non-PD US, Non-PD EU [tag/del]
||Sonata for 2 Pianos
||Sonate für zwei Klaviere
|Year/Date of Composition
||1942-11-20 in New York City, New York
- Celius Dougherty, Vincenz Ruzicka, pianos
||1942 – Mainz: Schott
|Additional Copyright Info
||U.S. copyright status: copyright renewed 1970 (R477678)|
In the USA, This item is not in the public domain because it was renewed 28 years after first publication with a proper notice or it was "restored" to copyright status via a Notice of Intent to Enforce (NIE) under the provisions of the GATT/TRIPS amendments. It will enter the US public domain on January 1st, 2038.
Wikipedia article (French)