November 3rd is the annual Culture Day at the Meiji Shrine in Tokyo. One part of the day is a koryu,
a demonstration of Japanese traditional martial arts. These arts are defined as ones that predate the Meiji Restoration of 1868.
Here's a short video with some clips of the Koryu.
Aikido is a Gendai budo, an art that was developed after 1868. It has certain features that the older arts do not, a belt system for rank being one of the more obvious.