{ \new Staff \with{ \magnifyStaff #3/2 } << \time 2/1 \override Score.TimeSignature #'stencil = ##f { \clef bass des1_D-flat \clef treble des'_D-flat } >> }

D (D-flat) is a musical note lying a diatonic semitone above C and a chromatic semitone below D. It is thus enharmonic to C. In the French solfège it is known as re bémol. It is the second semitone of the solfège.

When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of middle D (or D4) is approximately 277.183 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 DDDDSubsubcontra8.662
D0D͵͵ or ͵͵D or DDDSubcontra17.324
D1D͵ or ͵D or DDContra34.648
D2DGreat69.296
D3dSmall138.591
D4dOne-lined277.183
D5dTwo-lined554.365
D6dThree-lined1108.731
D7dFour-lined2217.461
D8dFive-lined4434.922
D9dSix-lined8869.844
D10dSeven-lined17739.688

Scales

Common scales beginning on D

  • D major: D E F G A B C D
  • D natural minor: D E F G A Bdouble flat C D
  • D harmonic minor: D E F G A Bdouble flat C D
  • D melodic minor ascending: D E F G A B C D
  • D melodic minor descending: D C Bdouble flat 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 Edouble flat F G A Bdouble flat 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 Bdouble flat C D
  • D Locrian: D Edouble flat F G Adouble flat Bdouble flat C D

Jazz melodic minor

See also


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