27 in B♭ major, K. 595, is Wolfgang Amadeus Mozart's last piano concerto; it was first performed early in 1791, the year of his death.

[2] The concerto may have been first performed at a concert on 4 March 1791 in Jahn's Hall by Mozart and the clarinetist Joseph Beer.

Another possibility is that it was premiered by Mozart's pupil Barbara Ployer on the occasion of a public concert at the Palais Auersperg in January 1791.

[4] The work is scored for flute, two oboes, two bassoons, two horns in B-flat, solo piano and strings, which makes it thinner than Mozart's other late concertos, all of which except for No.

[citation needed] The principal theme for the finale was also used in Mozart's song "Sehnsucht nach dem Frühling" (also called "Komm, lieber Mai"), K. 596, which immediately follows this concerto in the Köchel catalogue.