...or 浪曲 is a folk of folk narrative singing (or singing narration). Its association (we're in Japan so there's always an association!) is very close to our place and when they get together they hang this lantern outside. Which is very beautiful and picturesque and all but not very practical when it's raining. Hence the hack.
(For a bigger version of this picture both in color and black and white, check my "Japan Arekore" set on Flickr)