Re: Ceremony marking the 40th anniversary of O Senseis death
We often include chanting the norito or simple kotodama syllable chanting as a portion of the day. There are ceremonial demonstrations done by dojo members as a gift to O-Sensei's legacy and memory. Food is also brought to the dojo and laid out in front of the kamiza. After training it is eaten by those present. We also train, of course, and do some reading of his doka. The traditions are more or less formal at different dojo's. We're pretty much in the upper-middle of formality.
Whatever one does, it should be done in joyful gratitude for a life that sprung forth so much for so many.
Have fun! Train Hard!