A Japanese drum festival in Narita city is one of the largest in Japan. For 2 days the Naritasan Shishoji Temple and old Narita streets fill with people and drum music. It occurs once a year in spring (second weekend in April). There are performances on stages and streets, a holy fire concert and a parade.
The main event is a simultaneuos performance of about 300 musicians of different drum schools and all ages. It consists of the appreciation of nature and hope for world peace.
The beats are really impressive!
See the event page: http://nrtm.jp/ (Japanese),
and http://nrtm.jp/whats_new.pdf (English)