D♯ (musical note)
D♯ (D-sharp) 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 a major 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 (or D♯4) is approximately 311.127 Hz.[1] See pitch (music) for a discussion of historical variations in frequency.
Designation by octave
| Scientific designation | Helmholtz designation | Octave name | Frequency (Hz) | MIDI note number |
|---|---|---|---|---|
| D♯−1 | D♯͵͵͵ or ͵͵͵D♯ or DDDD♯ | Subsubcontra | 9.723 | 3 |
| D♯0 | D♯͵͵ or ͵͵D♯ or DDD♯ | Subcontra | 19.445 | 15 |
| D♯1 | D♯͵ or ͵D♯ or DD♯ | Contra | 38.891 | 27 |
| D♯2 | D♯ | Great | 77.782 | 39 |
| D♯3 | d♯ | Small | 155.563 | 51 |
| D♯4 | d♯′ | One-lined | 311.127 | 63 |
| D♯5 | d♯′′ | Two-lined | 622.254 | 75 |
| D♯6 | d♯′′′ | Three-lined | 1244.508 | 87 |
| D♯7 | d♯′′′′ | Four-lined | 2489.016 | 99 |
| D♯8 | d♯′′′′′ | Five-lined | 4978.032 | 111 |
| D♯9 | d♯′4′′′′′ | Six-lined | 9956.063 | 123 |
| D♯10 | d♯′′′′′′′ | Seven-lined | 19912.127 | N/A |
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♯
- 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♯
References
- ^ Suits, B. H. (1998). "Physics of Music Notes - Scales: Just vs Equal Temperament". MTU.edu. Michigan Technological University. Retrieved 5 February 2024.