Taiko as secret weapon?

[Saionji Shonagon]

I attended a taiko concert last night. San Francisco Taiko Dojo premiered a new composition titled "Hayate" about a group of villagers who disguised themselves as demons and drove Uesugi Kenshin's army away without a fight simply with their drumming.

I was curious enough to fire off an email to SFTD this morning to ask if they had a source for the story they would share.

Google turns up the following:
www.gojinjodaiko.jp/en_top.html

www.sohdaiko.org/reviews.html

www.hot-ishikawa.jp/f-lang/english/noto-area/event-detail.html#07

nohmask21.com/eu/gojinjyotaiko.html

Anyone here ever encounter this story?