D♯ (musical note)

D (D-sharp) or re 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 D4) is approximately 311.127 Hz. See pitch (music) for a discussion of historical variations in frequency.

Designation by octave

Scientific designation Helmholtz designation Octave name Frequency (Hz)
D−1D͵͵͵ or ͵͵͵D or DDDDSubsubcontra9.723
D0D͵͵ or ͵͵D or DDDSubcontra19.445
D1D͵ or ͵D or DDContra38.891
D2DGreat77.782
D3dSmall155.563
D4dOne-lined311.127
D5dTwo-lined622.254
D6dThree-lined1244.508
D7dFour-lined2489.016
D8dFive-lined4978.032
D9dSix-lined9956.063
D10dSeven-lined19912.127

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 scales

  • 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


See also


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