Here are the only 3 videos so far from last night in Tokyo. Good work by the uploaders and fnmjpfan for putting together the play list.
Some info on the throat singer via notre ami Bertrand from FNM French Community and Kayo in Comments:
He is Makigami Koichi, a well-known vocalist in Zorn’s circle who led the ensemble Hikashu. According to one website he is “known for his virtuosic vocal range and expression as well as his unique incorporation of elements of theatre, performance, and entertainment, all of which make this Japanese band so widely acclaimed both critically and popularly.”