Hey everyone ,
I was just wondering about not harmony. I'm trying to learn some music theory, and knead just wondering if a barre chord one octave higher than another would harmonize
A barre chord on the 3 rd fret of the E string and the 14 th fret on the E string.
This Is drop d tuning
Anything an octave higher is exactly the same thing, thus it will be in perfect unison.

Although an octave above the 3rd fret is the 15th fret, not the 14th fret.
Only play what you hear. If you don’t hear anything, don’t play anything.
-Chick Corea