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
Neapolitan scale minor chords. The 4th mode of the Neapolitan minor, also known as the Lydian Minor scale, is an excellent choice for the 911/13 (no 5) chord. Said mode contains all the alterations plus the 5. A whole tone scale is often used but that mode tends to be minus the 5 that the Lydian Minor contains. The 5th mode of the Neapolitan major is also known as the major Locrian scale. Neapolitan scale In music, the major Neapolitan scale and the minor Neapolitan scale are two musical scales. Both scales are minor, despite their names. The sequence of scale steps