I don’t know when it was fixed, but I just noticed that the solfege (skill names) for the choir bell have been fixed! They now read Do Re Me Fa Sol La Te.
It could have possibly been years since this was fixed, I might be very out of touch, but the incorrect solfege was really annoying for me, and made composing/reproducing by sight frustrating. So thank you nonetheless, music nerd(s) at ANet!
(Haven’t checked other instruments)
/me tips transmuted tier-3 crafted hat