For 19th-century audiences Beethoven's Piano Concerto No. 3 was the most loved of all his piano concertos, a work in which the balancing of high drama, tenderness, lyricism and humour is most pronounced and in which a coda resolves inner tensions with brilliance and triumphant grandeur. Piano Concerto No. 4 is the most introspective and poetic of the concertos. The simplicity of it's opening piano statement gives way to an unprecedented dialogue in the central movement between a heartfelt piano and an austere unison string orchestra, before the infectious energy of the dramatic finale.