Circle of fourths and their family of chords.

C major scale = C, D, E, F, G, A, B, C   (no sharps or flats)

 

C major (3 note) family of chords

C major, D minor, E minor, F major, G major,  A minor, B diminished,

I             ii           iii          IV          V            vi          viio

 

C major (4 note) family of chords

C maj7,  Dm7,      Em7,     Fmaj7,      G7,       Am7,     Bm7b5,

Imaj7      ii7         iii7        IV maj7     V7         vi7        viiØ7

 

(the dominant seventh chord (G7 in the key of C major) is the chord

that defines the key were in - more on this later.)

 

F major scale = F, G, A, Bb, C, D, E, F   (one flat Bb)

F major (3 note) family of chords

F major, G minor, A minor, Bb major, C major,  D minor,  E diminished,

I             ii           iii          IV            V            vi            viio

 

F major (4 note) family of chords

F maj7,   Gm7,     Am7,      Bbmaj7,     C7,      Dm7,    Em7b5,

Imaj7      ii7         iii7         IV maj7      V7        vi7      viiØ7

 

 

 

Bb major scale = Bb, C, D, Eb, F, G, A, Bb    (two flats Bb, Eb)

Bb major (3 note) family of chords

Bb major,  C minor, D minor,  Eb major,  F major,  G minor,  A diminished,

I               ii           iii           IV             V            vi            viio

 

Bb major (4 note) family of chords

Bb maj7,  Cm7,      Dm7,       Ebmaj7,    F7,        Gm7,       Am7b5,

Imaj7       ii7          iii7          IV maj7    V7          vi7          viiØ7

 

 

 

Eb major scale = Eb, F, G, Ab, Bb, C, D, Eb   (three flats Bb, Eb, Ab)

Eb major (3 note) family of chords

Eb major, F minor, G minor, Ab major,  Bb major,  C minor,   D diminished,

I              ii           iii          IV             V              vi            viio

 

Eb major (4 note) family of chords

Eb maj7,  Fm7,      Gm7,     Abmaj7,      Bb7,      Cm7,       Dm7b5,

Imaj7       ii7          iii7        IV maj7       V7         vi7          viiØ7

 

 

Ab major scale = Ab, Bb, C, Db, Eb, F, G, Ab   ( four flats Bb, Eb, Ab, Db)

Ab major (3 note) family of chords

Ab major, Bb minor, C minor, Db major, Eb major, F minor,  G diminished,

I              ii             iii          IV            V             vi           viio

 

Ab major (4 note) family of chords

Ab maj7,   Bbm7,    Cm7,      Dbmaj7,    Eb7,       Fm7,      Gm7b5,

Imaj7        ii7          iii7        IV maj7     V7          vi7         viiØ7

 

 

 

Db major scale = Db, Eb, F, Gb, Ab, Bb, C, Db   (five flats Bb, Eb, Ab, Db, Gb)

Db major (3 note) family of chords

Db major, Eb minor, F minor,  Gb major, Ab major, Bb minor,  C diminished,

I              ii            iii            IV            V             vi             viio

 

Db major (4 note) family of chords

Dbmaj7,   Ebm7,     Fm7,      Gbmaj7,    Ab7,         Bbm7,      Cm7b5,

Imaj7       ii7          iii7         IV maj7      V7            vi7           viiØ7

 

 

 

Gb major scale = Gb, Ab, Bb, Cb, Db, Eb, F, Gb  (six flats Bb, Eb, Ab, Db, Gb, Cb)

Gb major (3 note) family of chords

Gb major, Ab minor, Bb minor, Cb major,  Db major, Eb minor,    F diminished,

I               ii            iii           IV              V             vi              viio

 

Gb major (4 note) family of chords

Gb maj7,  Abm7,     Bbm7,      Cbmaj7,      Db7,        Ebm7,        Fm7b5,

Imaj7        ii7          iii7          IV maj7       V7            vi7            viiØ7

 

 

 

Cb major scale = Cb, Db, Eb, Fb, Gb, Ab, Bb, Cb  (seven flats Bb, Eb, Ab, Db, Gb, Cb, Fb)

Cb major (3 note) family of chords

Cb major, Db minor, Eb minor,  Fb major, Gb major,  Ab minor, Bb diminished,

I               ii            iii             IV            V              vi            viio

 

Cb major (4 note) family of chords

Cb maj7,  Dbm7,     Ebm7,      Fbmaj7,     Gb7,       Abm7,       Bbm7b5,

Imaj7       ii7           iii7          IV maj7      V7          vi7            viiØ7

 

 

Assignment memorize all the family of chords for each of the circle of fourths.

 

Also record (or have a friend play) these common major scale chord progressions 

5 to 10 minutes each for all seven flat keys then live (or on another track) play the major scale for each key using first quarter then eighth notes.

Start about 100 BPM.

 

1. I //// IV //// V ////  IV ////

 

2. ii //// V //// I ////

 

3. ii //// V //// I //// vi ////

 

4. I //// V //// vi //// IV ////

 

Later create at least 4 to 6 of your own progressions for each key.