Originally Posted by: schmangeCheck here. It explains it in pretty good detail.
http://www.wholenote.com/default.asp?iTarget=http%3A//www.wholenote.com/cgi-bin/page_view.pl%3Fl%3D4454%26p%3D1%26a%3D0
So a 9th chord is made up of the 1 3 5 7 and 9th notes, while an add9th is 1 3 5 9, with out the 7th?
1 Peter 2:16