"Being Systematic About Subgroups" - Oops!

Hi all - I accidentally posted a large, extremely mathematical post
called "Being Systematic About Subgroups" here by mistake - it should
be on tuning-math. I've deleted it, but for those who got it and are
like "wtf is all this math?" and are wondering what it's doing here,
this is what happened.

The tuning-math post in question, for those interested, is actually here:
/tuning-math/message/20720

Thanks,
Mike