[schwartzworld]

I have never heard "out of tune unison" described as an interval, except in a joke about viola players. Sure, there's a difference between 440 and 442 but that's not considered an interval in western music theory.

[agency]

> Sure, there's a difference between 440 and 442 but that's not considered an interval in western music theory.

Well that's just your 2 cents... I mean, 7.85 cents.