日本音楽出版社協会 is the organization in Japan founded in 1973.
According to PR-model, mpaj.or.jp is ranked 213,816th in multilingual Wikipedia, in particular this website is ranked 17,508th in Japanese Wikipedia.
The website is placed before kortfilmfestival.be and after petkim.com.tr in the BestRef global ranking of the most important sources of Wikipedia.