Here's a challenge. Can anyone help me find this song? I think I heard it via an 80's or early 90's video shot closeup, in B&W or at least, in shadows - 2 guys (possibly brothers), long hair, perhaps with guitars, singing a ballad, extraordinarily beautiful soaring harmony. Nothing of the words will come to mind*, but the aching sound of the harmony is in my head. Somehow the word Exciter is in my mind, but when I looked for that on Amazon, I don't see anything that seems close. *Hmm. "More than you know" or something like that might be in the lyric?