a: A B C D E F G

C: C D E F G A B

a#: A# C C# D# E# F# G#

C#: C# D# F F# G# A# C

b: B, C# D, E, F# G, A,

D: D, E, F# G, A, B, C#

c: C, D, D# F, G, G# A#

D#: D# F, G, G# A# C, D

c#: C# D# E, F# G# A, B

E: E F# G# A B C D

d: D, E, F, G, A, A# C

F: F, G, A, A# C, D, E

d#: D# F F# G# A# B C#

F#: F# G# A# B C# D# F

e: E, F# G, A, B, C, D,

G: G, A, B, C, D, E, F#

f: F, G, G# A# C, C# D#

G#: G? A? C C? D? E? G

f#: F# G# A, B, C# D, E

A: A, B, C# D, E, F# G#

g: G, A, A# C, D, D# F

A#: A# C, D, D# F, G, A

g#: G# A# B, C# D# E F#

B: B, C# D# E, F# G# A#

Brief synopsis on how to harmonize chord progressions and melodies, based on different scales:

key:

lower case numerals= minor

lower case with *= either whole diminished or half diminished

uppercase= major

uppercase with + = augmented

major scale's chord formula:

I ii iii IV V vi vii*

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

natural minor scale's chord formula, which is hardly ever used:

i ii* III iv v VI VII

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

harmonic minor chord formula, which is the most used minor formula:

i ii* III+ iv V VI #vii*

A minor, B half diminished, C augmented, D minor, E major, F major, G# whole diminished

Melodic minor scale's chord formula, which is really never used at all:

i ii III+ IV V #vi* #vii*

A minor, B minor, C augmented, D major, E major, F# half diminished, G# whole diminished

Phrygian parallel:

i bII bIII iv v* bVI bvii

C minor, Db major7th, Eb dominant7th, F minor, G half diminished, Ab major7th, Bb minor