As these events are basically for Tokyo citizens, unfortunately, no real language or translation help is available for travelers who are non-Japanese speakers. Besides, it is too hard to find where these events are being held. However, if you understand basic Japanese, or have friends who speak Japanese, it will give you a good opportunity to find heritages that you can rarely see.
Detailed information can be found on a guidebook issued by Tokyo Metropolitan Government, available at public facilities including libraries. Or, further information is available from this web page (Japanese)
Tokyo Metropolitan government Division of Lifelong Learning