D-flat minor D-flat minor D minor is a theoretical key based on D, consisting of the pitches D, E, F, G, A, B, and C. Its key signature has six flats and one double flat. Its relative major is F major (usually replaced by E major), its parallel major is D major, its direct enharmonic equivalent is C♯ minor, which is normally used. The D natural minor scale is: \override Score.TimeSignature #'stencil = ##f \relative c' { </score> Changes needed for the melodic and harmonic versions of the scale are written in with accidentals as necessary. The D harmonic minor and melodic
E-flat major Beethoven's (hypothetical) 10th symphony is in the key of E-flat major. But even before Beethoven, Francesco Galeazzi identified E-flat major as "a heroic key, extremely majestic, grave and serious: in all these features it is superior to that of C." Three of Mozart's completed horn concertos and Joseph Haydn's famous Trumpet Concerto are in E-flat major and so is Anton Bruckner's Fourth Symphony with its prominent horn theme in the first movement. Another famous heroic piece in the key of E-flat major is Richard Strauss's "A Hero's Life". The heroic theme from the Jupiter movement of Holst's "The Planets" is