Hey Friend,
Since talking about the Circle of Fifths last week, It's appropriate to look at the next key and set of chords.Our first journey into keys and chords was with the key of C major.
By using the Circle of Fifths tool, we determined the next key in line to study is G major. The G note is the fifth note in the key of C major and a perfect fifth interval. If you follow the major scale pattern of W W H W W W H and count the number of frets, a perfect fifth interval is seven half steps (or semitones) up from the tonic (one note).
1 w 2 w 3 h 4 w 5 w 6 w 7 h 8 (1) 2 2 1 2 2 2 1
The second line represents the number of frets between each note. Looking at the second line and counting the number, you see where I'm getting the number seven.
2+2+1+2 = 7
The key of G major is very similar to C major. All the notes are natural with the exception of on sharp note (F#). The keys share four common chords (G, Am, C and Em), so we can simply review those and get into some of their substitutions perhaps.
Here's how they line up next to each other:
C Major: C D E F G A B C D E F G A B G Major: ...G A B C D E F#...
The reason not all the notes line up is because of the pattern: W W H W W W H
If you look at the notes in the key of G major, here's how they line up within the major scale pattern:
G w A w B h C w D w E w F# h (G)
And here are the chords (with common chords in bold):
C Major: C Dm Em F G Am B° C G Major: G Am Bm C D Em F#° G
Alright, chew on that today. Make it a great one!
Peace~
Dave | 
