C major scale
The C major scale is C D E F G A B C. The key of C major has no sharps or flats. Its relative minor is A minor, which uses the same key signature.
C D E F G A B C
C major scale on the staff
Here is one octave of the C major scale going up, written with the key signature. C major uses only the natural notes, the white keys of the piano.
C major scale on the piano
Scale degrees
| Degree | Note | Name | Solfege |
|---|---|---|---|
| 1 | C | tonic | do |
| 2 | D | supertonic | re |
| 3 | E | mediant | mi |
| 4 | F | subdominant | fa |
| 5 | G | dominant | sol |
| 6 | A | submediant | la |
| 7 | B | leading tone | ti |
C major key signature
The key signature sits right after the clef at the start of every line. C major has no sharps or flats.
Chords in the key of C major
Build a chord on each note of the scale using only notes from the scale and you get the chords of the key. The Roman numeral says which scale degree the chord sits on; capitals are major chords, lowercase are minor, and ° means diminished.
| Numeral | Chord | Notes | Seventh chord |
|---|---|---|---|
| I | C | C E G | Cmaj7 (Imaj7) |
| ii | Dm | D F A | Dm7 (ii7) |
| iii | Em | E G B | Em7 (iii7) |
| IV | F | F A C | Fmaj7 (IVmaj7) |
| V | G | G B D | G7 (V7) |
| vi | Am | A C E | Am7 (vi7) |
| vii° | Bdim | B D F | Bm7♭5 (viiø7) |
About the key of C major
C major has no sharps or flats, so it uses only the white keys of the piano. That makes it the key most beginners meet first and the easiest one to read. Many first piano pieces, nursery tunes and classroom songs are in C. Singers often move such tunes up or down to suit their range, but C is the standard way to learn how a major scale is built.
Well-known music in C major:
- Piano Sonata No. 16 in C major, K. 545 (Mozart)
- Prelude in C major, BWV 846 (Bach)
Nearby keys
Check yourself
1. How many sharps are in the key of C major?
Answer: 0. C major has no sharps or flats.
2. What is the 5th note (the dominant) of C major?
Answer: G. Count up the scale C, D, E, F, G: the 5th note is G.
3. What is the relative minor of C major?
Answer: A minor. The relative minor starts on the 6th note of the scale and shares the key signature.
All major scales
- C major
- G major
- D major
- A major
- E major
- B major
- F♯ major
- C♯ major
- F major
- B♭ major
- E♭ major
- A♭ major
- D♭ major
- G♭ major
See also: the circle of fifths, key signatures, all major scales explained.