A great awesome upload. Err, does Yuyuko know that you shouldn't really eat butterflies? Or was she really that hungry because Youmu forgot to serve her dinner for the fourth time? xD
It's actually not that hard to find faithful renditions of the piece. As a matter of fact I noticed while double checking that it can be found on youtube that you commented on one such faithful rendition two days before posting this comment so I'm not sure what you mean by saying you've never heard how it was originally played.
