Diatonic Scale

DO

RE

MI

FA

SOL

LA

TI

DO

Scale Degree

1

1#/2b

2

2#/3b

3

4

4#/5b

5

5#/6b

6

7b

7

1

Chord Function

I

IIb

II

IIIb

III

IV

Vb

V

VIb

VI

VIIb

VII

I

Principle Chord Selection

I

V

I

IV

I

IV

V

I

Basic Alternate Chords

VIm IV

V7 IIm VIIdim

VIm IIIm

IIm IVM7 VSus4 VIIdim

IIIm IM7 ISus4 V

IIm IVM7 VIm

V7 VIIdim IIIm

VIm IV

Keys

Sharps #

Flats b

C

0

0

C

C#

D

Eb

E

F

F#

G

Ab

A

Bb

B

C

C#/Db

7

5

C#

D

Eb

E

F

F#

G

Ab

A

Bb

B

C

C#

D

2

D

Eb

E

F

F#

G

Ab

A

Bb

B

C

C#

D

Eb

3

Eb

E

F

F#

G

Ab

A

Bb

B

C

C#

D

Eb

E

4

E

F

F#

G

G#

A

Bb

B

C

C#

D

Eb

E

F

1

F

F#

G

Ab

A

Bb

B

C

C#

D

Eb

E

F

F#/Gb

6

6

F#

G

Ab

A

Bb

B

C

C#

D

Eb

E

F

F#

G

1

G

Ab

A

Bb

B

C

C#

D

Eb

E

F

F#

G

Ab

4

Ab

A

Bb

B

C

C#

D

Eb

E

F

F#

G

Ab

A

3

A

Bb

B

C

C#

D

Eb

E

F

F#

G

Ab

A

Bb

2

Bb

B

C

C#

D

Eb

E

F

F#

G

Ab

A

Bb

B

5

B

C

C#

D

Eb

E

F

F#

G

Ab

A

Bb

B

Basic Chords

Major

X

X

X

X

Minor

X

X

X

X

Suspended 4th

X

X

X

X

7th

X

X

X

X

X

Major 7th

X

X

X

X

X

Modal Scales with principle chord selections

Ionian (Major)

DO I

RE V

MI I

FA IV

SOL I

LA IV

TI V

DO I

Dorian

RE IIm

MI IIIm

FA IIm

SOL IIIm

LA IIm

TI IIIm

DO VIm

RE IIm

Phrygian

MI IIIm

FA IIm

SOL IIIm

LA VIm

TI VIIdim

DO IIIm

RE VIIdim

MI IIIm

Lydian

FA IIm

SOL IIIm

LA VIm

TI IIIm

DO VIm

RE IIm

MI IIIm

FA IIm

Mixolydian

SOL V

LA I

TI IIm or IV

DO V

RE IV or IIm

MI V

FA I

SOL V

Aeolian (Minor)

LA VIm

TI IIIm

DO VIm

RE IIm

MI IIIm

FA IIm

SOL IIIm

LA IIm

Locrian

TI IIIm

DO VIm

RE IIm

MI IIIm

FA IIm

SOL IIIm

LA IIm

TI IIIm