When there will be a new redemption, there will be a new song. The essence of song is that it is new, alive, immediate. No, that is not really a mitzva. It just seems to be a necessary accompaniment of any serious Jewish experience. There are plenty of details I did not even touch on.
Every section has to fit into the framework, and has a purpose.
If you figure it out beforehand, the seder will mean a lot more on Pesach night. This shiur is provided courtesy of the Virtual Beit Midrash , the premier source of online courses on Torah and Judaism - 14 different courses on all levels, for all backgrounds.