日本音楽教育文化振興会 is the association in Japan founded in 1954.
According to PR-model, jmecps.or.jp is ranked 671,335th in multilingual Wikipedia, in particular this website is ranked 51,970th in Japanese Wikipedia.
The website is placed before motorsportworld.com.au and after klondikegoldcorp.com in the BestRef global ranking of the most important sources of Wikipedia.