Ludwig van Beethoven composed his Piano Sonata No. 12 in A♭ major, Op. 26, in 1800–01, around the same time as he completed his First Symphony. He dedicated the sonata to Prince Karl von Lichnowsky, w
1801 engraving by Johann Joseph Neidl, after a now-lost portrait of Beethoven by Gandolph Ernst Stainhauser von Treuberg, ca. 1800
Rondo
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The rondo or rondeau is a musical form that contains a principal theme which alternates with one or more contrasting themes. Some possible patterns include: ABACA, ABACAB, ABACBA, or ABACABA.
Title page of Franz Rigler's "Three Rondos" (1790)