Russian pianist and composer (1829–1894) acclaimed as one of the foremost keyboard artists of all time. AMQS on an off-white 8 x 5 sheet. Rubinstein pens four bars on two handwritten staves. A flat major, 6/4tel stroke, the first two bars of "Largo" and "ff" overwritten, the following two labeled "Allegro." In very good condition, with bisecting folds, small separation along one fold, scattered light soiling, and some light pencil notations and remnants. Pre-certified PSA/DNA and RRAuction COA.