We mark the premiere on April 5, 1803 – 218 years ago today – of Beethoven’s Piano Concerto No. 3 in C minor at a public concert held at the Theater-an-der-Wien, in Vienna. Beethoven was the piano soloist and conducted the Theater-an-der-Wien Orchestra from the piano. The title of this post - “Three’s the Charm” – is meant in no way to diminish Beethoven’s piano concerti nos. 1 and 2. Rather, it would indicate that this third concerto, completed when Beethoven was 32 years old, is the first piano concerto of his compositional maturity and is thus packed with the sorts of modernity and expressive range that the phrase “Beethoven’s maturity” implies.