Although the music that Mozart wrote for more than one pianist was usually designed for himself and the company of a wealthy patron or a star pupil, it was probably inevitable that he would compose a concerto expressly to perform with his sister.
The Double Concerto in E-flat major, written in the late 1770s, was conceived for the two siblings that was now grown up and had long ago stopped going on the road.
It is one of his most engaging concertos. Throughout the work, Mozart delights in the almost operatic interplay of the two instruments, not to mention the wondrous racket of racing scales, rumbling bass lines, and amazing trills—all in duplicate.
This piece, however, is not a stunt. It is a work of maturity, significance, and—particularly in the glorious slow movement— is a truly personal expression of joy.
Here are Emil and Elena Gilels to play this music for you:
