So can't we just use your description, and you create it? Or I can just be patient.

I think this will take me a couple days just to wrap my head around.

You don't have enough honor to create katas. Apart from that, your description of the task contradicts itself, otherwise it looks kinda alright.

def invert(a):
    return [*accumulate((x - y for x, y in zip(a, a[1:])), lambda x, y: (x + y) % 12, initial=a[0])]

Could be a little clearer with Python 3.8.

And Bartók concurs lol

Anyways can this be converted to a Kata now? I found there actually is another pitch class inversion kata, but very different.

Schoenberg approved ;)

Very legit, I also love the way you changed the description.

seems legit

Use of modulus operator

Need help with the description, does this make sense? Anyone without musical experience does this make sense? How can I convert the description into something more universal?