Two Pianos, Four Hands. 2 Copies needed to perform. To see other NFMC selections, click here. The Piano Concerto No. 1 In Eb Major was written over a period of some 26 years, with the initial themes first written down in 1830, and the final revision in 1849. This version has had the orchestral part transcribed for a second Piano, enablingeasy study or practice of the solo part, or reference to the work as a whole.