Maybe, but we're still arguing about pitch now. Yeah, if you're playing with a keyboard, the you tune to the keyboard, and yeah 440 is the standard, but orchestras routinely use 442, Vienna is at 446, some people advocate for 432 (they're mostly nuts). Baroque musicians use a different arbitrary standard, 415, even though A has historically been as low as like, 392, and as high as 460something. That doesn't even go into intonation systems. We use one equal temperament, but there are others - 1/4 comma is popular in some baroque circles, and groups without a keyboard instrument often aren't even using equal temperament, they're using a form of just intonation! Shit's wild, fam. Frankly if it was possible to drag one pipe organ over to play next to another we would have settled on something in like 300BC.