Étude Op. 25, No. 10, in B minor is a solo piano study composed by Frédéric Chopin in 1835.
Structure Étude Op. 25, No. 10 features many unique aspects not typically present in Chopin's études, including a significant and distinctive ternary form. The first theme is presented as a series of eighth note-tuplets in cut time, but not in time, played at a very fast tempo of Allegro. The second theme is in B minor's parallel major, B major, and in triple metre. The second theme is repeated four times, and develops into a variation of the first theme, returning to cut time and B minor.
Copious pedal point notes and phrase markings are present in the second theme, but the entire étude lacks any pedal indications. Similar to the Op. 10, No. 4 étude, Chopin emphasizes legato playing through the phrasing and (lack of) pedal marking. Throughout the entire work, Chopin marks only five dynamic markings; the entire first theme is to be played forte to fortissimo, and the whole second theme is piano.Palmer, W: Chopin Etudes for the Piano, page 108. Alfred Publishing Co., Inc., 1992
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Op. 25, No. 10 played by Josef Lhévinne Op. 25, No. 10 played by Alfred Cortot Op. 25, No. 10 played by Claudio Arrau Op. 25, No. 10 played by Vladimir Ashkenazy Op. 25, No. 10 played by Maurizio Pollini Op. 25, No. 10 played by Andrei Gavrilov