C (musical note)

C or Do is the first note of the C major scale.
Designation by octave
Scientific designationHelmholtz designationOctave nameFrequency (Hz)Other namesAudioC−1  C͵͵͵ or ͵͵͵C or CCCC  Octocontra  C0  C͵͵ or ͵͵C or CCC  Subcontra   C1  C͵ or ͵C or CC  Contra   C2  C  Great   Low C, cello C, 8' C (see organ pipe length) C3  c  Small  4' C or tenor C (organ), viola C C4  c′  One-lined    Middle C C5  c′′  Two-lined   Treble C, high C (written an octave higher for tenor voices)"The Note That Makes Us Weep" by Daniel J. Wakin, The New York Times, September 9, 2007 C6  c′′′  Three-lined High C (soprano)C7  c′′′′  Four-lined  Double high C C8  c′′′′′  Five-lined Eighth octave C, triple high CC9  c′′′′′′  Six-lined  Quadruple high C C10  c′′′′′′′  Seven-lined  Quintuple high C 

 Middle C 
Middle C is the musical note C that is in the middle of the piano keyboard.  It is not perfectly in the middle of the keyboard, but very nearly. When you compare all the Cs in the piano, it is the one nearest to the middle.

When writing Middle C in music notation, it is below the stave when using the treble clef and just above the stave when using the bass clef.  This is shown in the first and last notes of the musical example below.  The Middle C sits on a ledger line (an extension of the stave written just for one note).

References

Category:Musical notes