music theory
Note, Scale, Chord… explained simply
music theory
Note, Scale, Chord… explained simply

Ab major: Key Signature, Scale and Chords

Circle of fifths with Ab major (4 ♭): chords of the key highlighted on the wheel

Ab major has 4 ♭ (Bb, Eb, Ab, Db) in its key signature.

The Ab major scale is: Ab Bb C Db Eb F G Ab.

The diatonic chords are Ab (I), Bbm (ii), Cm (iii), Db (IV), Eb (V), Fm (vi) and Gdim (vii°). The main functions are Ab (tonic), Db (subdominant) and Eb (dominant).

The relative minor is F minor. In the circle of fifths, Db major (a fifth lower) and Eb major (a fifth higher) sit right next to Ab major.

Ab major is comfortable to play on the piano and appears frequently in the Romantic era. Chopin's "Heroic" Polonaise (Op. 53) is in Ab major.

All keys at a glance

Table with key signatures and all diatonic chords. Click a key to open its own page.

Back to the overview: Circle of Fifth

Mnemonic for sharp keys: Good Dogs Always Eat Big Fat Cats

Mnemonic for flat keys: Fat Bears Eat Apples Daily Getting Chubby

KeyKey signatureIiiiiiIVVvivii°
C majorA minornoneCDmEmFGAmBdim
G majorE minor1 ♯F#GAmBmCDEmF#dim
D majorB minor2 ♯F#, C#DEmF#mGABmC#dim
A majorF# minor3 ♯F#, C#, G#ABmC#mDEF#mG#dim
E majorC# minor4 ♯F#, C#, G#, D#EF#mG#mABC#mD#dim
B majorG# minor5 ♯F#, C#, G#, D#, A#BC#mD#mEF#G#mA#dim
F# majorD# minor6 ♯F#, C#, G#, D#, A#, E#F#G#mA#mBC#D#mE#dim
C# majorA# minor7 ♯F#, C#, G#, D#, A#, E#, B#C#D#mE#mF#G#A#mB#dim
F majorD minor1 ♭BbFGmAmBbCDmEdim
Bb majorG minor2 ♭Bb, EbBbCmDmEbFGmAdim
Eb majorC minor3 ♭Bb, Eb, AbEbFmGmAbBbCmDdim
Ab majorF minor4 ♭Bb, Eb, Ab, DbAbBbmCmDbEbFmGdim
Db majorBb minor5 ♭Bb, Eb, Ab, Db, GbDbEbmFmGbAbBbmCdim
Gb majorEb minor6 ♭Bb, Eb, Ab, Db, Gb, CbGbAbmBbmCbDbEbmFdim
Cb majorAb minor7 ♭Bb, Eb, Ab, Db, Gb, Cb, FbCbDbmEbmFbGbAbmBbdim

Free Online Exercises

Interactive carousel with 4 music theory exercises. Use the arrow keys or swipe to move between the exercises.