D-sharp (musical note)
D or ré dièse is the fourth semitone of the solfège.
It lies a chromatic semitone above D and a diatonic semitone below E, thus being enharmonic to mi bémol or E. However, in some temperaments, it is not the same as E. E is a perfect fourth above B, whereas D is an augmented third above B.
When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of the D above middle C is approximately 311.127 Hz. See pitch (music) for a discussion of historical variations in frequency.
Scales
Common scales beginning on D
- D major: D E F G A B C D
- D natural minor: D E F G A B C D
- D harmonic minor: D E F G A B C D
- D melodic minor ascending: D E F G A B C D
- D melodic minor descending: D C B A G F E D
[Diatonic scale]s
- D Ionian: D E F G A B C D
- D Dorian: D E F G A B C D
- D Phrygian: D E F G A B C D
- D Lydian: D E F G A B C D
- D Mixolydian: D E F G A B C D
- D Aeolian: D E F G A B C D
- D Locrian: D E F G A B C D
Alternate Scales
- D Dorian ♭2: D E F G A B C D
- D Lydian augmented: D E F G A B C D
- D Lydian dominant: D E F G A B C D
- D Mixolydian ♭6: D E F G A B C D
- D Locrian ♮2: D E F G A B C D
- D altered: D E F G A B C D