Another related issue for me. When I write C5, BB understands and displays that. The problem is that there is no change in sound from C and C5, at least on the styles I have tried.

Beyond BIAB, there seems to be disagreement about whether a "power chord" could actually be considered a chord. I have seen it referred to as a "fifth chord", also as a dyad.

Given the significant effect on intermodulation distortion when the third is removed, I am surprised there is no standard name for it.

Cheers,

Billy

“Amazing! I’ll be working with Jaco Pastorius, Charlie Parker, Art Tatum, and Buddy Rich, and you’re telling me it’s not that great of a gig?
“Well…” Saint Peter, hesitated, “God’s got this girlfriend who thinks she can sing…”