wanted to say that im totally wrong on the G7#9/D chord. It is good but without the D which was bothering me, but just now with piano i came to realize that the chord is good. Excuse.
As i had said in an other thread about a scale which is called Moll-dur (latin for flats in major) there were a few people who annoyed me (kind of hic haec hoc thing) so i decide to let you know this way.
The scale of moll-dur is in wave: EF#G#ABCD (or D# is beautifull too) so this you can play on the A- so no G involved. Its A-maj7 or D7#11. So maybe this is easyer going to Ab7. (if they play A-7 than thats a part of D7)
I wish you all the luck,