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| | Ursprung unbekannt Unknown source| Willibrord Joseph Mähler| [{Image src='https://www.austria-forum.org/cc/images/slim/publicdomain.png' alt='Public domain' align='center' link='https://www.austria-forum.org/cc/public-domain-10.html' target='_blank'}]| Datei:Beethoven Mähler 1815.jpg
| Piano Sonata No. 27 (Sonata Emin op. 90), 1st movement Professor Hokanson's 90th Birthday recital. Recorded June 18 2006, at Brechmin Hall, Music School, University of Washington, by Al Swanson| The Al Goldstein collection in the Pandora Music repository at ibiblio.org.| Ludwig van Beethoven| [{Image src='https://www.austria-forum.org/cc/images/slim/by-sa.png' alt='CC BY-SA 2.0' align='center' link='https://www.austria-forum.org/cc/by-sa-20.html' target='_blank'}]| Datei:Beethoven Sonata Emin op90 1st movement.ogg
| Piano Sonata No. 27 in E minor , Ludwig van Beethoven 's opus 90 — 2 nd movement. Professor Hokanson's 90 th Birthday recital. Recorded June 18 2006, at Brechmin Hall, Music School, University of Washington, by Al Swanson.| The Al Goldstein collection in the Pandora Music repository at ibiblio.org.| Ludwig van Beethoven| [{Image src='https://www.austria-forum.org/cc/images/slim/by-sa.png' alt='CC BY-SA 2.0' align='center' link='https://www.austria-forum.org/cc/by-sa-20.html' target='_blank'}]| Datei:Beethoven Sonata Emin op90 2nd movement.ogg
| | | | [{Image src='https://www.austria-forum.org/cc/images/slim/publicdomain.png' alt='Public domain' align='center' link='https://www.austria-forum.org/cc/public-domain-10.html' target='_blank'}]| Datei:Beethoven pf son 27 first theme.png
| | | | [{Image src='https://www.austria-forum.org/cc/images/slim/publicdomain.png' alt='Public domain' align='center' link='https://www.austria-forum.org/cc/public-domain-10.html' target='_blank'}]| Datei:Beethoven pf son 27 sec mov theme.png
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