G-flat major Rondo-Finale of his Seventh Symphony. Mahler's Tenth Symphony was composed in the enharmonic key of F-sharp major. This key is more often found in piano music, as the use of all five black keys allows an easier conformity to the player's hands, despite the numerous flats. Austrian composer Franz Schubert chose this key for his third impromptu from his first collection of impromptus (1827). Polish composer Frédéric Chopin wrote two études in the key of G-flat major: Étude Op. 10, No. 5 "Black Key" and Étude Op. 25, No. 9 "Butterfly". French composer Claude Debussy used this key for one
Rondo in E-flat major (Chopin) Rondo in E-flat major (Chopin) The Rondo in E-flat major, Op. 16, sometimes called Introduction and Rondo, is a classical composition by Frédéric Chopin, written in 1833. It was dedicated to Caroline Hartmann. The piece is written in rondo form. It begins with a passionate introduction in C minor, followed by the joyful main theme in E-flat major. The second theme is still lively, but somewhat more subdued than the first. To conclude, the main theme returns, followed by the coda. The piece as a whole is varied and interesting, but challenging for the pianist. The average performance of this