D (musical note)
Encyclopedia
D is a musical note a whole tone
above C
, and is known as Re within the solfege
system.
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.
Major second
In Western music theory, a major second is a musical interval spanning two semitones, and encompassing two adjacent staff positions . For example, the interval from C to D is a major second, as the note D lies two semitones above C, and the two notes are notated on adjacent staff postions...
above C
C (musical note)
C or Do is the first note of the fixed-Do solfège scale. Its enharmonic is B.-Middle C:Middle C is designated C4 in scientific pitch notation because of the note's position as the fourth C key on a standard 88-key piano keyboard...
, and is known as Re within the solfege
Solfege
In music, solfège is a pedagogical solmization technique for the teaching of sight-singing in which each note of the score is sung to a special syllable, called a solfège syllable...
system.
When calculated in equal temperament
Equal temperament
An equal temperament is a musical temperament, or a system of tuning, in which every pair of adjacent notes has an identical frequency ratio. As pitch is perceived roughly as the logarithm of frequency, this means that the perceived "distance" from every note to its nearest neighbor is the same for...
with a reference of A above middle C as 440 Hz
Hertz
The hertz is the SI unit of frequency defined as the number of cycles per second of a periodic phenomenon. One of its most common uses is the description of the sine wave, particularly those used in radio and audio applications....
, the frequency of middle D (D4) is approximately 293.665 Hz. See pitch
Pitch (music)
Pitch is an auditory perceptual property that allows the ordering of sounds on a frequency-related scale.Pitches are compared as "higher" and "lower" in the sense associated with musical melodies,...
for a discussion of historical variations in frequency.
Designation by octave
| Scientific Scientific pitch notation Scientific pitch notation is one of several methods that name the notes of the standard Western chromatic scale by combining a letter-name, accidentals, and a number identifying the pitch's octave... designation |
Helmholtz Helmholtz pitch notation Helmholtz pitch notation is a musical system for naming notes of the Western chromatic scale. Developed by the German scientist Hermann von Helmholtz, it uses a combination of upper and lower case letters , and the sub- and super-prime symbols to describe each individual note of the scale... designation |
Octave name | Frequency (Hz) |
|---|---|---|---|
| D-1 | D͵͵͵ or ͵͵͵D | Subsubcontra | 9.177 |
| D0 | D͵͵ or ͵͵D | Subcontra | 18.354 |
| D1 | D͵ or ͵D | 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 |