Editing C (musical note) (section)

{{Short description|Note in western music}}
{{Redirect|High C|the fruit-flavored drink|Hi-C}}
{{stack|<score>{ \new Staff \with { \remove "Time_signature_engraver" \magnifyStaff #3/2 } { \time 2/1 c'1^"c′" \clef bass c^"c" } }</score>}}
'''C''' or '''Do''' is the first [[musical note|note]] of the [[C major]] [[scale (music)|scale]], the third note of the [[A minor]] scale (the [[Relative key|relative minor]] of C major), and the fourth note (G, A, B, C) of the [[Guidonian hand]], commonly [[Pitch (music)|pitched]] around 261.63&nbsp;[[Hertz|Hz]]. The actual [[frequency]] has depended on historical [[concert pitch#History of pitch standards in Western music|pitch standard]]s, and for [[transposing instrument]]s a distinction is made between written and sounding or [[concert pitch]]. It has [[enharmonic]] equivalents of '''B{{music|sharp}}''' and '''D{{music|bb}}'''.

In English the term ''Do'' is used interchangeably with C only in the context of [[Solfège#Fixed do solfège|fixed Do solfège]]; in the [[Solfège#Movable do solfège|movable Do]] system Do refers to the [[Tonic (music)|tonic]] of the prevailing [[key (music)|key]].