@@cypherking5546 Mortician i think plays even lower (Like G standard or some shit like that) and korn plays in A standard. You can tell by watching them play live, they dont play one finger power chords.
For those wondering about the equivalent open major and minor chords and their respective extensions... E chords become A (major, minor, etc.) A chords become D (major, minor etc.) D chords become G (major, minor etc.) G chords become C (major minor etc, however, the only open equivalent chords can only be major, and only barre chords for minor.) B chords become E chords (even though you can only make them in this tuning with open extensions, and only barre triads).
I tried to find these tunings on just googling them and it was to brain dead to know what I was looking for~!!! So I found you instead! Thanks for that!
I'm here because I decided to tune my 5 string bass' bottom string lower than the usual Drop D my basses are tuned to, and then made a song with it. Naturally I went with the note above D which is A.