Thank you for the info. By the way: the Dscgs entry also has "Yatsura", so may be wrong as well. I first thought that "Yatsura" sounds more Japanese (which I don't speak), but the spelling "Yatura" appears also on the OBI strip, so that makes a typo even less likely.
Regarding the music: harmless. You asked for it!
PS It's probably a typo on both the cover and the OBI. Goggle Translate says "うる星やつら" is "Urusei Yatsura". I would go with that.