Chopin: Waltz Op. 64 No. 3 in A-flat Major (published in 1847) . DOWNLOAD piano sheet music from Piano Street digital sheet music library. Waltz in A-flat Major Op. 64 No. 3 by the composer Frédéric Chopin (1810-1849). This piano piece was composed in 1847 and is part of Chopin's Waltzes.