Banjo
Fretboard Scale Charts & Theory
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The last C is the start of next Higher Octave.
C D E F G A B C=Notes
of One Octave
Each Major Chord Note 
going in a clockwise
direction is followed by the Fifth note in it's Chord make up. That is: "C"
chord is made up of C=1st Note, E=3rd Note and G=5th Note. So "G"
is the next chord in the circle of fifths. "D" would be the 5th note
of the chord "G" and so on around the circle. Or another way of saying
this is: Each note going around in a clockwise direction is the Fifth note of
the previous notes Chord makeup.
Looking
at the Circle of Fifths: Most Songs Basic Chord Structure will Have the
Key Chord, the Fourth Chord (Based on the fourth Note of the key
Chord) and the Fifth7th Chord (Based on the Fifth Note of the Key Chord
with the seventh note of it's scale added ( If the Fifth Chord is a "G',
then the seventh note of the G scale (F) would be Added to make the G7 chord).
So the Songs Basic Chords in the Key of "C" Would Be: C-F-G7. Likewise,
Songs in the Key of "D" Would Have Chords: D-G-A7. Or in the Key of
"E": E-A-B7.
Simply
put: Pick any Note in the Circle, Call it The Key Chord. The Note on the Circle
before your Key Chord is the Fourth Chord and the Note after is the Fifth Chord
( Remember to Make it a Seventh Chord). So you can look at the Circle and always
know what Three Basic Chords to Play for any Key.
