Rachmaninoff's original six-hand duet pieces, "Waltz" and "Romance," are two pieces. The six-hand duet can be enjoyed by three players, with four players adding an additional player. "Romance" closely resembles the opening of the second movement of Piano Concerto No. 2, making it an intriguing piece that foreshadows the appearance of the concerto ten years later. The score has been edited by Yutaka Kadono, a renowned instructor of piano duos. Zen-On has also published a duet piece, but this has ...