Welcome to the "Country I-III-IV Progression" lesson. This is part of a series of lessons that explore country harmony. The I-III-IV progression has a very unique sound that is easily identifiable when we move from the I chord to the III chord.
Not sure what I-III-IV means? It's based on the Nashville Numbers system. A system that makes it easy to play charts in various keys. Each Roman numeral names a chord within the key that you are playing in. Uppercase numerals reference Major chords while lowercase numerals reference minor chords. If we were playing diatonically in the key of C it would look something like this:
I = C
ii = Dm
iii = Em
IV = F
V = G
vi = Am
vii = Bm
Since we are playing in the key of G:
G = I
B = III
C = IV
While I am performing on an acoustic guitar, an electric would also be right at home for this lesson.
Gear: Seagull S6>AKG P220>Tascam 4X4HR>Pro Tools
Key: G
Chords: G, B7, C, D
Time Signature: 6/8
BPM: 70
Scales: G Pentatonic Major (there are no scales used in the lesson but try this for soloing over the backing track)