Originally Posted by: HambergIt cant be a dominate 7th because the 7th in his chord is major and in dominate 7 its minor.

I never said it was a Dominant 7 chord.
What I said was...it can function as V7.

And if you read this again:

Other names for that chord can be:
Amaj7#9
Amaj7+9
Amaj7(aug9)

you can see that I am referring to that chord as a Major 7, and not a dominant 7.
So please, learn a little about reharmonization and chord functionality, before trying to correct me.