Sorry if this is a re-hash, search didn't turn up much for me. Oh yea kind of a rant... I come from a jazz theory background. To me a suspended chord is a 3rd raised to the 4th. There is tension with the suspension that wants to resolve. How the heck is a 2nd, 6th, 9th whatever suspended? I see this more and more. It gets confusing in my simple mind; Sus 9, uh do you mean an 2 chord (no 7th), or an add 9 (7th present) or a sus (4th) add 2, or 4th, 7th and 9th? I play with mostly younger players these days (I'm vintage!) so maybe it's the evolution of theory? No third in the chord it's a sus!