Sorry, I know i made a chord stuff thread earlier, but i feel like i need a new thread. If i need to, i can place it in the old thread, but whatever.

Chord notation, is that like "maj7" and things like that? If it is, then will someone make a list of that and what each one means?

9th chords, im not familiar with them. When are they commonly used, what type of music?

7#5, does that mean the same thing as 7aug5?

sus, does that mean the same thing as sus4?

(i beleive i just asked two questions on chord notation, but i have no clue honestly.)

I will post more using the Edit feature if i have more questions regarding this. Thanks to anyone who helps!
If you want to jam in/around Mooresville NC message me.