Minor scale based on the accidentals of the "natural" minor scale, not on those of the harmonic or melodic minor scales. For example, a piece in E minor will have one sharp in its key signature because the E natural minor scale has one sharp (F). Major and minor keys that share the same key signature are "relative" to each other. For instance, F major is the relative major of D minor since both have key signatures with one flat. Since the natural minor scale is built on the 6th degree of the major scale, the tonic of the relative minor is
A-flat major major for G-sharp minor. (The same enharmonic situation occurs with the keys of D-flat major and C-sharp minor.) It was used quite often by Franz Schubert; twenty-four of Frédéric Chopin's piano pieces are in A-flat major, more than any other key. Beethoven chose A-flat major as the key of the slow movement for most of his C minor works, a practice which Anton Bruckner imitated in his first two C minor symphonies and also Antonín Dvořák in his only C minor symphony. Since A-flat major was not often chosen as the main key for orchestral works of the 18th century,