D♭ (musical note)

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

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 D♭4) is approximately 277.183 Hz.[1] See pitch (music) for a discussion of historical variations in frequency.

Designation by octave

Scientific designation Helmholtz designation Octave name Frequency (Hz)
D♭−1 D♭͵͵͵ or ͵͵͵D♭ or DDDD♭ Subsubcontra 8.662
D♭0 D♭͵͵ or ͵͵D♭ or DDD♭ Subcontra 17.324
D♭1 D♭͵ or ͵D♭ or DD♭ Contra 34.648
D♭2 D♭ Great 69.296
D♭3 d♭ Small 138.591
D♭4 d♭′ One-lined 277.183
D♭5 d♭′′ Two-lined 554.365
D♭6 d♭′′′ Three-lined 1108.731
D♭7 d♭′′′′ Four-lined 2217.461
D♭8 d♭′′′′′ Five-lined 4434.922
D♭9 d♭′′′′′′ Six-lined 8869.844
D♭10 d♭′′′′′′′ Seven-lined 17739.688

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

References

  1. ^ Suits, B. H. (1998). "Physics of Music Notes - Scales: Just vs Equal Temperament". MTU.edu. Michigan Technological University. Retrieved 5 February 2024.

See also


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