Hello World. I'm working on an R&B beat with a nice chord progression. The third bar has a really awkward chord, but it actually sounded really good. This awkward chord is a TRUE chord. The notes are E, F#, and A, giving you a chord called E-5sus4add9. Now what I wanna know is what scale would fit this chord without getting off key? I know I can play the actual notes in the chord, but I need to know other notes I can play without getting off key. There simply isn't an E-5sus4add9 scale. All help would be appreciated.