update: Jed says, " "Here are eight more ads from this company (with heavily overlapping elements in some of them; the first two are particularly similar). Also, here is more info and a translation, plus a transcription of the lyrics. It seems that the theme of the ad is 'expansion.' And more translation here.
At any rate, the other thing worth noting on that last page is that the raccoon with the giant testicles is actually a tanuki, apparently a raccoon-like nature spirit. Or else actually a raccoon, depending on which source you believe. It's been speculated that Totoro is part tanuki, and there's another Studio Ghibli movie (not directed by Miyazaki) that features tanuki more directly/prominently. And that's more than enough digression for one site suggestion, so I'll stop now."