Wolfgang Amadeus Mozart breaks a concerto tradition in his Piano Concerto No. 9, known as the “Jeunehomme Concerto”, with his placement of a piano solo near the opening of the piece. Mozart wrote countless concertos, many of which are sprightly and elegant to the ear, even at the fingers of an eight-year-old. While exploring various sounds into his teens, Mozart was so heavily inspired by Johann Christian Bach’s writing that he reinterpreted it, making it his own. Bach and Mozart bonded over music, as well as over tricky keyboard games.