Questions on Chord Matrixes

[Doug T]

I would guess it is in there because G is the 5 chord in the key of C and a 7th chord wants to resolve to another chord so when you play G7 it wants to go the the 1 chord C

Try playing c-G7- C and notice how it sounds complete when you go back to C.

So in this case I would consider both G or G7 to be the 5 chord.

[drew.sudell]

The canonical chord would be a diminished 7th, in this case Bdim. That consists of B-D-F. The G7 is a G Major with a 7th added, so G-B-D-F. So it’s basically a Bdim with a G in the base. In the chord progressions I’ve seen Tony substitute a dominant 7th for the diminished chord more than a few times. I suspect it’s “easier to play” and/or “something that comes up more often.” But if you’re looking at the Chord Matrix from Fretboard Wizard and not expecting a G variant between the Am and the C, you’re right.

• This reply was modified 2 years, 10 months ago by  drew.sudell.
• This reply was modified 2 years, 10 months ago by  drew.sudell.
• This reply was modified 2 years, 10 months ago by  drew.sudell. Reason: fix typos

[Carol-3M-Stillhand]

Hi @powel1018yahoo-com the short answer is that Tony’s chord matrix in Fretboard Wiz is a matrix of 3 note chords. So you are correct, the FW chord matrix does not have a G7 chord.

The 7 chords are 4-note chords. (3 is the minimum number of notes you need to have a chord). To make a 7 chord, all you have to do is take the 3 note chord and add a 4th note. So grab any chord from the chord matrix and add one more note to the end of it to get the 7 chord. (You start with the root note and include every other note)

GBD (G-major) becomes GBDF (G7).

CEG (C-major) becomes CEGB (C7)

[powel1018yahoo-com]

Thank you Carol for taking time to answer.

[powel1018yahoo-com]

Thank you very much for your help.