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.

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. 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 DDDD♭Subsubcontra8.662
D♭0D♭͵͵ or ͵͵D♭ or DDD♭Subcontra17.324
D♭1D♭͵ or ͵D♭ or DD♭Contra34.648
D♭2D♭Great69.296
D♭3d♭Small138.591
D♭4d♭′One-lined277.183
D♭5d♭′′Two-lined554.365
D♭6d♭′′′Three-lined1108.731
D♭7d♭′′′′Four-lined2217.461
D♭8d♭′′′′′Five-lined4434.922
D♭9d♭′′′′′′Six-lined8869.844
D♭10d♭′′′′′′′Seven-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♭ 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♭

Jazz melodic minor

See also


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