D (musical note)

"Re (musical note)" redirects here. For its use in movable-do system, see Solfège.

D is a musical note a whole tone above C, and is known as Re within the fixed-Do solfege system. An enharmonic note is C, which is a diatonic semitone below D.

When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of middle D (D4) is approximately 293.665 Hz. See pitch 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 9.177
D0 D͵͵ or ͵͵D or DDD (-vD) Subcontra 18.354
D1 D͵ or ͵D or DD (-wD) Contra 36.708
D2 D (-xD) Great 73.416
D3 d (-yD) Small 146.832
D4 d (zD) One-lined 293.665
D5 d (yD) Two-lined 587.330
D6 d (xD) Three-lined 1174.659
D7 d (wD) Four-lined 2349.318
D8 d (vD) Five-lined 4698.636
D9 d (uD) Six-lined 9397.273
D10 d (tD) Seven-lined 18794.545


Common scales beginning on D

Diatonic scales

Jazz Melodic Minor

See also

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