Tomo teaches the A-7 chord with E G C G on the bottom 4 strings. When I had encountered this chord earlier, I always thought it was a C chord, because it doesn't have the A root. My question is why do we treat this as A-7 and not C (ie. ii- and not IV)?
The A-7 chord, at time stamp 3:54, is played on five strings, with the Root on the 5th String. Whether or not you play the Root, this chord is played when the progression moves to the ii- chord.
And please note that, on the guitar, the "bottom 4" strings are Strings 6 5 4 3, while the "top 4" strings are Strings 4 3 2 1.
Thank you so much for sharing.
You are talking about this video?
https://tomovhxtv.vhx.tv/videos/b9-open-chords-songwriter-chords-a-b-c-sections-strumming-muting
A-7 = X 0 2 0 1 0 = X R 5 b7 b3 5
Or = X 0 2 0 1 3 = X R 5 b7 b3 b7
Top 4 strings you are talking about.
I played 5 notes.
Thank you.