Been following this thread with interest (taught myself a couple new chord shapes thanks to Ed), and noticed a couple of those shapes can be called by different names (no surprise.)
If I were anywhere close to a level where I heard lines in my head to play over these chords AND could get them out on the spot... That was my goal and when I was gigging regularly that's what we did. Unfortunately when Covid hit we stopped gigging and three years later my playing has suffered...
thegearforum.com
I was wondering if anyone would mind explaining why you'd use one vs. the other. I'd expect it has something to do with context...
Examples:
GMaj9 & Bm7
F#m7b5 & Am6
I go against the grain here, while it the are cases the bass note might tell the function it’s always context that really decides. What comes before and after and the melody is the context.
All chords have pluralities.
In your A-6 or F♯ø case you can add rootless D9, or C6♭5, or B7sus♭9, or A♭7♭9♯5
So even without a bass note just playing this on the top 4 strings.
X x 4 6 6 6
X x 4 5 5 5
X x 3 5 4 4
Just about anyone will hear it as Eb-7 A♭7alt D♭△9
Whereas this...
X x 5 5 5 5
X x 4 5 5 5
X x 4 4 3 5
Most uf not all will hear as A-7 D9 G△9
And speaking of pluralities look at °7 chords the root can be any of it's 4 notes so this
X x 3 4 3 4 can be F°7 B°7 D°7 G♯°7
Or rootless E7♭9 B♭7♭9 D♭7♭9 G7♭9
Same with augmented stuff.
Like
X x 5 6 6 5
if you move this In whole steps that initial
A7♯5 now can not just be B7♯5 but also
A9♭5(omit3) then up a whole step
A9♯5 again whole up
A7♭5 up whole
A9♭5♯5(omit3) up whole
A9♯5 up whole