Which is exactly why we don't do it here.
But having an outside tool that we can mention when the question comes up is nice to have, because the question DOES come up (vocal mixes, piano mixes, etc. etc.).
Personally I'd prefer it if the word genre wasn't used, as it implies classification, rather than description. I think something like OCR Tagged would be better, because the term tag implies limitless descriptors, rather than pidgeon-holed classification. That way we can tag stuff with like "violins" or "4-on-the-floor" instead of "Orchestral" and "Techno."
But hey, I'm not programming it, so whatev.