Ever since Toutaikai and Expo '14 I've just been judging all her releases by how good they might sound in concert, so by that standard
Nagaku Mijikai Matsuri tentatively gets the green light. It's a fine song as long as Ukigumo doesn't have a rap part.
Plus if this ever makes it on an album it could get the Dopamint treatment.
EDIT: Slightly longer sample available!
revised verdict: eh