Osechi-ryōri, are traditional food,started in the Heian Period (794-1185), sometimes used to celebrate which annual festival with its own customs?
Osechi Osechi-ryōri (御節料理 or お節料理) are traditional Japanese New Year foods. The tradition started in the Heian Period (794-1185). "Osechi" are easily recognizable by their special boxes called "jūbako" (重箱), which resemble "bentō" boxes. Like "bentō" boxes, "jūbako" are often kept stacked before and after use.
Yatai-bayashi Yatai-bayashi (屋台囃子 , lit. "festival cart orchestra") is a traditional taiko piece inspired by an annual festival in Chichibu, Japan. The piece been performed by many taiko ensembles, and became well-known through dramatic variations of the piece developed by Ondekoza and Kodo. "Yatai-bayashi" has been recognized as a piece that requires great physical endurance.