Interactive Music Theory Tool
C Major Chord Explorer
Select a chord from the C major scale to see its notes, chord quality, Roman numeral, keyboard position and musical function.
Selected chord
C major
Notes
C · E · G
Scale degree
1st
Roman numeral
I
How this chord is built
RootC
ThirdE
FifthG
Major triad: root, major third and perfect fifth.
Its role in C major
C major is the tonic chord. It feels stable and sounds like home.
Major
Tonic
Root position
C major selected. Notes C, E and G are highlighted.