Polka, piano, op. 15, E♭ major
Rubinshteĭn, Nikolaĭ Grigorʹevich, 1835-1881. Polka, piano, op. 15, E♭ major. Polka for piano: autograph manuscript, [1835-1881].
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Rubinshteĭn, Nikolaĭ Grigorʹevich
Theme and variations for piano, op. 88
Rubinstein, Anton, 1829-1894. Theme and variations for piano, op. 88: autograph manuscript, 1871?