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C Major · Circle of Fifths

Select a key to connect its signature, scale, chords and guitar fretboard positions.

Explore the circle

Select any major or minor key
CIAmviGVEmiiiDBmAF♯mEC♯mBG♯mF♯D♯mD♭B♭mA♭FmE♭CmB♭GmFIVDmii
Selected key: C Major
  1. Bdim, vii°
  2. F♯dim
  3. C♯dim
  4. G♯dim
  5. D♯dim
  6. A♯dim
  7. E♯dim
  8. Cdim
  9. Gdim
  10. Ddim
  11. Adim
  12. Edim
Selected: C MajorRelative keyFifth neighborsDiatonic chordsDiminished triads: Bdim (vii°)

Key profile

C Major

No sharps or flats

Circle relationships

A fifth aboveG MajorA fifth belowF MajorRelative keyA Minor

Scale notes

CDEFGAB

Diatonic chords

Primary
In-key minor
C

C · E · G

View C chord page

Guitar fretboard

C Major · standard tuning · frets 0–12

0357912EBGDAEEFGABCDEBCDEFGABGABCDEFGDEFGABCDABCDEFGAEFGABCDE
● Root● Scale toneTap a note to hear it

Swipe sideways to explore all twelve frets.

Progression explorer

Fixed patterns mapped to this key
CGAmF
100 BPM · 2 beats / chord

Quick practice

Learn by doing

What is a fifth above C Major?

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