Shop and Buy Beethoven - Sonata In C-Sharp Minor, Opus 27, No. 2 (Moonlight) sheet music. Piano, Piano/Keyboard sheet music book by Ludwig van Beethoven (1770-1827): G. Schirmer at Sheet Music Plus: The World Largest Selection of Sheet Music.

The key of C minor – often a perfect vehicle for tragic, deeply emotive music – is Beethoven’s key of choice here, leading many to believe it was directly inspired by Mozart’s Piano Sonata No.14, composed in the same key less than two decades previously. While there might be links, many of these are arguably tenuous.