D (musical note)

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"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 Cdouble sharp, 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[edit]

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 587.33
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[edit]

  • 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
  • D Dorian: D E F G A B C D

See also[edit]