With his two cycles of Studies op.10 and op.25, published in 1833 and 1837, Chopin achieved something completely unexpected, since no one before him had managed to compose technical exercises possessing such musical qualities. Chopin's Studies are pieces of character of extraordinary tension, intended for the concert hall. The most virtuoso of them, such as the “Revolutionary Study” op. 10, n ° 12, are in the repertoire of any pianist. Our Urtext edition includes, in addition to the two cycles op.10 and 25, three studies without opus number that Chopin composed for a Parisian piano method published in 1840. These are wonderful lyrical miniatures that have nothing to envy to twenty-four major studies.