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, 17:03, January 31, 2021
Piano Sonata No. 32 in C minor, Op. 111, is the last of Ludwig van Beethoven's piano sonatas. It was dedicated to his friend, pupil, patron, and protector, Archduke Rudolf (who, by the way, received fourteen other dedications from Beethoven). [<ref>Solomon, Maynard, Beethoven, Schirmer Books, NY (1977) p. 306.</ref>]
This sonata was probably composed in 1821 and 1822, when Beethoven was 50 and 51.
The three piano sonatas, Opus nos. 109, 110, and 111, “form a set as coherent as any of his previous groups of three works, and … contain many subtle links ….” [<ref>Cooper, Barry, Beethoven, Oxford University Press (2000), pp. 288-89.</ref>]
The sonata Opus 111 has only two movements:
1. Maestoso – Allegro con brio ed appassionato (C-minor, 4/4 time signature)
2. Adagio molto semplice e cantabile (C-major, 9⁄16 [initial time signature])
“[T]he first movement is perhaps surprisingly conventional, echoing the mood of several other C minor works. … The second movement, by contrast, possesses an extraordinary visionary quality, transcending all previous piano music and even challenging the limits of the notational system in which it was written.” [<ref>Cooper, Barry, Beethoven, Oxford University Press (2000), p. 290.</ref>]
The metrical scheme of the second movement is highly innovative. Because a three-beat rhythm plays a significant role in the movement, Beethoven uses unusual time signatures of 9/16, 6/16, and 12/32 to mark various passages. In fact, according to Cooper, “no modern time signature is capable of indicating a bar consisting of three beats each of which divides into four sub-beats which in turn divide into three.” [<ref>Cooper, Barry, Beethoven, Oxford University Press (2000), p. 290</ref>]
Among the many astonishing aspects of the second movement is the simplicity of its theme:
From these three notes, Beethoven builds a lovely and monumental structure of twenty minutes’ duration.