If memory serves, this is the dance that the young Shining Prince performed together with To-no-chujo, in an early chapter of Genji monogatari--and brought tears to the eyes of the spectators.
Bugaku (lit. dance music) uses only winds and percussion - sho, hichiriki, ryuteki, kakko, taiko and shoko for togaku; hichiriki, komabue, sannoko and also taiko and shoko for komagaku. Togaku can also be performed in kwangen (wind and string) form, without dance accompaniment but with added string instruments, biwa and so