Musical note, also known as Re
"Re (musical note)" redirects here. For its use in movable-do system, see
Solfège.
D[1] is a musical note a whole tone above C, and is known as Re within the fixed-Do solfege system. Its enharmonic equivalents are C (C-double sharp) and E (E-double flat). It is the third 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 (D4) is approximately 293.665Hz.[2] See pitch 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 |
9.177
|
D0 |
D͵͵ or ͵͵D or DDD |
Subcontra |
18.354
|
D1 |
D͵ or ͵D or DD |
Contra |
36.708
|
D2 |
D |
Great |
73.416
|
D3 |
d |
Small |
146.832
|
D4 |
d′ |
One-lined |
293.665
|
D5 |
d′′ |
Two-lined |
587.33
|
D6 |
d′′′ |
Three-lined |
1174.659
|
D7 |
d′′′′ |
Four-lined |
2349.318
|
D8 |
d′′′′′ |
Five-lined |
4698.636
|
D9 |
d′′′′′′ |
Six-lined |
9397.273
|
D10 |
d′′′′′′′ |
Seven-lined |
18794.545
|
Scales
Common scales beginning on D
See also
References