C major

C major
${ \magnifyStaff #3/2 \omit Score.TimeSignature s2 \clef F s }$
Relative key	A minor
Parallel key	C minor
Dominant key	G major
Subdominant	F major
Component pitches
	C, D, E, F, G, A, B

C major is a major scale based on C, consisting of the pitches C, D, E, F, G, A, and B. C major is one of the most common keys used in music. Its key signature has no flats or sharps. Its relative minor is A minor and its parallel minor is C minor.

The C major scale is:

$\header { tagline = ##f } scale = \relative c' { \key c \major \omit Score.TimeSignature c4 d e f g a b c b a g f e d c2 \clef F \key c \major } \score { { << \cadenzaOn \scale \context NoteNames \scale >> } \layout { } \midi { } }$

On the piano, the C major scale can be played by playing only the white keys starting on C.