MUSIC THEORY
**************

To find the scale of a key, eg. 'C' key:

T T S T T T S    (T=tone=2 notes,  S=semi-tone=1 note. The 8th note is the key itself.)
C D E F G A B C  (from C to D is 1 tone: C->C#->D.  From B to C is 1 semi-tone: B->C.)
1 2 3 4 5 6 7


The major chords of a key take after the 1st, 4th and 5th notes on the scale.
For the 'C' scale, the major chords are therefore C, F and G.

The minor chords of a key take after the 2nd, 3rd and 6th notes on the scale.
For the 'C' scale, the minor chords are therefore D, E and A (played as Dm, Em, Am).



BASIC CHORDS
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Chord Name : Formula : Example for 'C' key
(b=flat, #=sharp)

Major          : 1  3  5      : C  - C E  G
Minor          : 1  3b 5      : Cm - C Eb G
Diminished     : 1  3b 5b     : C° - C Eb Gb
Augmented      : 1  3  5#     : C+ - C E  G#

Major 7th      : 1  3  5  7   : Cmaj7 - C E  G  B
Dominant 7th   : 1  3  5  7b  : C7    - C E  G  Bb
Minor 7th      : 1  3b 5  7b  : Cm7   - C Eb G  Bb
Diminished 7th : 1  3b 5b 7bb : C°7   - C Eb Gb Bbb (or simply, A)

Add 6          : 1  3  5  6   : Cadd6 - C E  G  A




SCALES (Key Major)
********************
(virtual scale & chords available at http://www.pianoworld.com/fun/vpc/piano_chords.htm)

        1  2  3  4  5  6  7  8
C     : C  D  E  F  G  A  B  C
C#/Db : Db Eb F  Gb Ab Bb C  Db
D     : D  E  F# G  A  B  C# D
D#/Eb : Eb F  G  Ab Bb C  D  Eb
E     : E  F# G# A  B  C# Eb E
F     : F  G  A  Bb C  D  E  F
F#/Gb : Gb Ab Bb B  Db Eb F  Gb
G     : G  A  B  C  D  E  F# G
G#/Ab : Ab Bb C  Db Eb F  G  Ab
A     : A  B  C# D  E  F# G# A
A#/Bb : Bb C  D  Eb F  G  A  Bb
B     : B  C# D# E  F# G# A# B



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