Similar to the trios Op. 1 and the sonatas Op. 2, it's the third work of the sonatas Op. 10 - the sonata No. 7 in D major - which Beethoven intended as the high point of the trilogy. He returns there to the expanded, four-movement structure of his first four sonatas, and abandons - perhaps with the exception of the finale - the concise, sometimes even abrupt manner of composition he used in the fast movements of sonatas Nos. 5 and 6.
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