Scale Finder & Circle of Fifths
Scale notes, chords and key signaturesRuns locally · nothing uploaded
Scale notes· Key signature: No sharps or flats
CUnison
DMajor 2nd
EMajor 3rd
FPerfect 4th
GPerfect 5th
AMajor 6th
BMajor 7th
On the keyboard
On the guitar neck (standard tuning, frets 0–12)
Diatonic chords
| Degree | Triad | Seventh chord |
|---|---|---|
| I | C Major | Cmaj7 Major 7th |
| ii | Dm Minor | Dm7 Minor 7th |
| iii | Em Minor | Em7 Minor 7th |
| IV | F Major | Fmaj7 Major 7th |
| V | G Major | G7 Dominant 7th |
| vi | Am Minor | Am7 Minor 7th |
| vii° | Bdim Diminished | Bm7b5 Half-diminished (m7♭5) |
Circle of fifths (tap to change key)
Major keys outside, relative minors inside. Each step clockwise adds a sharp; counterclockwise adds a flat.
Also works as:circle of fifthskey signaturemajor scaleminor scalepentatonic scaleblues scalemodesdiatonic chords
How to use
- 1Choose the root and scale or mode.
- 2See the notes on the keyboard and guitar neck; tap Play scale to hear it.
- 3Tap any key on the circle of fifths to jump to that major key or its relative minor.
FAQ
How does the circle of fifths work?
Major keys are outside, relative minors (same key signature) inside. Each step clockwise is up a perfect fifth and adds a sharp; counterclockwise adds a flat. Neighbouring keys are closely related.
What are diatonic chords?
Chords built by stacking thirds using only scale notes. In a major key they're I, ii, iii, IV, V, vi and vii°—the source of most pop progressions.
Why B♭ in F major instead of A#?
A seven-note scale uses each letter once: F G A B♭ C D E. Writing A# would give two A's and no B, so notes are spelled by letter.
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