Barre Chord Numbering
Putting it All Together
Click here to download a PDF file of Intro to Barre Chord Theory.
Click here to download a PDF file of Intro to Barre Chord Theory.
For people applying chord theory and chord numbering on the piano/keyboard, it is easy to visualize how the chords work together. For the guitarist, it is not that simple. Many musicians have moved to the Nashville Number System for chording songs, and instead of writing the progression G, C, D, C, they might write 1, 4, 5, 4 with the thought that they may transpose from one key to any key. This is one of the benefit of understanding chord theory: making transposing easier.
Barre chords enable the guitarist to visualize and transpose with ease. If we are in the key of F, we can play all our major and minor chords with these barre chords (remember I, IV and V are major; ii, iii, and vi are minor):
Some important things to observe here include:
Some important things to observe here include:
If I were to play the chord progression 1, 4, 5, 4 in the key of F, then I would be playing this progression below:
If I want to change this progression to the key of G, all my chords would move up a whole step (or two frets). I would keep the same shapes, just play them all two frets higher. I would be playing the same progression, the chords would be each a whole step higher: G, C, D, C.
If I want to play this in the key of A, I again would move this entire progression up a whole step, or two frets. And I would be playing the chords: A, D, E, D.
Starting with an A Shape Barre Chord
What if our starting chord, our I chord, was an A shape barre chord? Let’s say we wanted to play chords I, ii, iii, IV, V, and vi, in the key of C. Our I, ii and iii chords would be A or Am shapes, and our IV, V, and vi chords would be E or Em shapes offset by two frets as in the picture below:
What if our starting chord, our I chord, was an A shape barre chord? Let’s say we wanted to play chords I, ii, iii, IV, V, and vi, in the key of C. Our I, ii and iii chords would be A or Am shapes, and our IV, V, and vi chords would be E or Em shapes offset by two frets as in the picture below:
This pattern could be copied up or down the fret board to change keys. In other words, if we would want to change to the key of D, each of our chords I through vi would be moved up two frets or a whole step.
Let’s say we wanted to do a popular progression in the key of C: 1 , 4, 6, 5 (I, IV, vi, V). We would be playing chords C, F, Am, G. It would look like this:
To modulate this progression, we could take it up or down the fretboard. To change to the key of D, everything would slide up two frets, and we would be playing chords D, G, Bm, A. To change to the key of B, we would instead go down one fret and be playing chords B, E (no barre finger here), G#m, and F#.
Thus we can raise or lower any key rather easily, when we play with barre chords. Additionally, the more one plays barre chords, they begin to visualize and hear chord progressions, which make them more easy to transpose into other keys.
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