Piano Concerto No.20 in D minor K466
Wolfgang Amadeus Mozart

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Mozart is the most popular composer in the Ultimate Hall of Fame with 20 entries — and this is his sixth entry. This reached its highest position of number 86 in 2006, the 250th anniversary of the composer's birth.

Written just before the massive hit Piano Concerto No.21, this one was premiered in a casino of all places. It should be noted that casinos in Mozart's day were venues where one often heard concerts, so probably it would not have proved too much of a problem for the players to be heard above the blackjack.

Correspondence from the time suggests that Mozart went up to the wire when it came to putting in the composition work on this piece. The ink was, literally, still wet on the page when he gave it his first public performance. His father Leopold wrote in a letter to Mozart's sister Nannerl: '…an excellent new piano concerto by Wolfgang, on which the copyist was still at work when we got there, and your brother didn't even have time to play through the rondo because he had to oversee the copying operation.'

Portrait of Mozart by Pietro Antonio Lorenzon (1763).