Almost everything you hear from the string plucking to knuckle/wood percussion is koto with the exception of obvious additions like the flute, kick drum, and bass guitar that come later as the ...
Once the members were in place, the set kicked off with the sound of the koto (Japanese harp) and the powerful rhythm of the wadaiko (Japanese drums) leading into "Rokuchounen-To-Ichiyamonogatari ...