"Chopin's extant compositions were written primarily for the piano as a solo instrument. Though they are technically demanding, his style emphasizes nuance and expressive depth. Chopin invented musical forms such as the ballade and was responsible for major innovations in forms such as the piano sonata, waltz, nocturne, étude, impromptu and prelude. His works are mainstays of Romanticism in 19th-century classical music.
Jan Ignacy Padrewski: "Paderewski brilliant playing created a furore which reached to almost extravagant lengths of admiration; and his triumphs were repeated in the United States in 1891. His name at once became synonymous with the highest level of piano virtuosity".