Interesting topic Joe.
I was just wondering. Is there really any such thing as "the right" and the "wrong" chord in a song? Sure there are the chords that are written on the sheet music by the songwriter (or arranger) and there is the chord that is played on the "original" recording but there are literally dozens of chords that will fit a melody line and can be substituted and will still sound good.
So, say if you take a public domain or traditional song or melody you can choose to harmonize it in any way that pleases you.
The only time a chord is wrong is when it classes with the melody. If instance you are playing a Gaug chord, G-B-D# and the melody note is a D then you will have a tonal problem.
Plus IMHO I dont think it is strictly necessary for everybody to be playing exactly the same chords at the same time. Lebz and I do this all the time in our live shows. For example he may be playing the major chord while I will be playing the relative minor.
We do that all of the time. A major chord played together with a relative minor chord becomes either a major 6th or a minor 7th, depending on the base note. For instance Lebz plays a C chord, C-E-G and you play an Am, A-C-E you have one of two chords depending on the base. If the base note is a C then you have a C6, but if the base note is an A then you have an Am7...............................
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