Two Pianos Four Hands. 2 Copies needed to perform.-Frederic Chopin's Rondo Op.73 for Two pianos four-hands. This work was originally conceived for solo piano but the composer perhaps unconvinced by the original version later revised it for two pianos. Surprisingly this was Chopin's only dabble with the two-piano genre. Requires two copies of the score to perform. Please note: two scores needed to perform.