Waltzes, op. 64

Frédéric Chopin's waltzes are pieces of moderate length for piano, all written between 1824 and 1849. They are all in waltz triple meter, specifically 34 (except Op. P1/13, which is in 38 time), but differ from earlier Viennese waltzes in not being intended for dancing; nonetheless, several have been used in ballets, most notably Les Sylphides. Some are accessible by pianists of modest capability, others require advanced technique. Chopin may have written as many as 36 piano waltzes, but only 19 (along with one inauthentic waltz) are numbered and only eight were published (in Opp.