Mozart then shared the sad news with his close friend Gottfried von Jacquin, a Viennese court official and amateur musician, and subsequently dedicated the piece to Gottfried's sister, Franziska von Jacquin.

[2] In Mozart's letter to Gottfried, he noted that the piece is "rather difficult" and therefore instructed Franziska to "tackle it at once".

[3] The first movement begins with the Primo and Secondo parts playing in unison, presenting the main theme with both vigor and delicacy.

Its main theme begins with a relaxed "music-box naivety"[4] full of glamour and humor.

Notable performances include those of Martha Argerich and Evgeny Kissin, The Latsos Piano Duo, Ingrid Haebler and Ludwig Hoffmann [de] [5]