Piano Sonata No. 14 (Beethoven)
In his book Beethoven's pianoforte sonatas, the renowned pianist Edwin Fischer suggests that this movement of this sonata is based on Mozart's "Ah Soccorso! Son Tradito" of his opera Don Giovanni, which comes just after the Commendatore’s murder. He claims to have found, in the archives of the Wiener Musikverein, a sketch in Beethoven's handwriting of a few lines of Mozart's music (which bears the same characteristic triplet figuration) transposed to C♯ minor, the key of the sonata. "In any case, there is no romantic moon-light in this movement: it is rather a solemn dirge", writes Fischer