The "Haffner Symphony", as we know it today, received its first performance on 23 March 1783 at the Vienna Burgtheater. At the concert, Mozart opened matters with the first three movements of this symphony, an aria from "Idomeneo" (described in his letter to his father of March 29 that year as his Munich opera), a piano concerto, a scena (a genre related to the concert aria), the concertante movements of one of his recent serenades, his piano concerto K. 175 (with a new finale), and another scena (from an opera he had composed for Milan); at this point he improvised a fugue "because the Emperor was present" and then two sets of variations (K. 398 on an aria by Paisiello and K. 455 on an aria by Gluck). After this, Madame (Aloysia) Lange sang his new rondo (K. 416?) and then to finish the concert, the last movement of the "Haffner Symphony" was played. The performance of the "Haffner Symphony" at this concert proved very successful.