Science Fair Project Encyclopedia
In music, the term "middle C" refers to the note "C" located between the staves of the grand staff. When calculated in equal temperament with a reference of A above middle C as 440 Hz, the frequency of the middle C note is approximately 261.625565 Hertz. See pitch (music) for a discussion of historical variations in frequency.
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details