Asus2 Chord
Chords with a 9th in them were puzzling to me. According to current music theory a 9th chord needs to have a 7th in it to be properly called a 9th chord otherwise we call it a "sus2".  
If I'm wrong about this let me know please. 
Thanks,
Hal
https://youtu.be/EzwdIrRzNW0