I hear it in the middle 3 of you notes. Buzzy is a good word. I am not sure what it is is, but you probably won't hear it on a job.

I find stuff like this very distracting anyway, when you know it's there, even if you can't hear it.

It is not very audible to me on the rock piano patch (but I do hear it very slightly), and I really can't hear it on the main piano patches. The rock piano does not sound that great to me in the first place, so its hard for me to distinguish the buzzing.

Either way, it is so slight that I don't think it would make a difference playing live. I think other notes would mask it pretty easily. BTW, I got my CP two years ago.