Jeunehomme: Piano Concerto No. 9 in E-flat major, K.271 is a piano concerto by Wolfgang Amadeus Mozart, composed in 1777. It blends the galant style of the early classical period with more developed solo-and-orchestra dialogue, and it has virtuosic piano writing, lyrical slow passages, varied orchestral textures and unexpected harmonic turns that point toward Mozart's later concerto work.