using maj7 as a dominant chord?

[SwingSwangSwung]

This is a common sub. If you look at the notes of the GM7, they include all the natural extensions of the A7... Giving the sus, 9th 11th, and 13th. Interesting thing about this sub is that if you move it up a minor third, you get all the altered extensions of the A7. It's a Robert Conti trick that I use allot.

I think this thread is more about forcing the not G# over the A7. I could be wrong.

Cheers

You beat me to the GM7 over A7 sub. That's what I was thinking.

I haven't tried moving it up a minor 3rd - cool idea!

[JohnW400]

I don't know if its been mentioned yet but besides IV over V mentioned I use
the tritone ma7 (Cma7 for F#7) a lot