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
Major Locrian scale or Aeolian mode with raised third and lowered fifth intervals. It may also be derived from the Phrygian Dominant scale, but this time, the second is major, while the fifth is diminished. In English, Arabian scale may refer to what is known as the major Locrian scale. A version of the major Locrian scale is listed as "mode 3" in the French translation of Safi Al-Din's treatise Kitab Al-Adwar. This was a Pythagorean version of the scale. Aside from this Arabic version, interest in the major Locrian is a phenomenon of the twentieth century, but the scale is definable in