D♭ (musical note)

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.

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

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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