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 Bilinear music notation Octave name Frequency (Hz)
D♭-1 D♭͵͵͵ or ͵͵͵D♭ or DDDD♭ (-uD♭) Subsubcontra 8.662
D♭0 D♭͵͵ or ͵͵D♭ or DDD♭ (-vD♭) Subcontra 17.324
D♭1 D♭͵ or ͵D♭ or DD♭ (-wD♭) Contra 34.648
D♭2 D♭ (-xD♭) Great 69.296
D♭3 d♭ (-yD♭) Small 138.591
D♭4 d♭′ (zD♭) One-lined 277.183
D♭5 d♭′′ (yD♭) Two-lined 554.365
D♭6 d♭′′′ (xD♭) Three-lined 1108.731
D♭7 d♭′′′′ (wD♭) Four-lined 2217.461
D♭8 d♭′′′′′ (vD♭) Five-lined 4434.922
D♭9 d♭′′′′′′ (uD♭) Six-lined 8869.844
D♭10 d♭′′′′′′′ (tD♭) Seven-lined 17739.688

Scales

Common scales beginning on D♭

Diatonic scales

Jazz Melodic Minor

See also


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