The word 'johakyu' is well known because this word is mentioned in "Kakyo," "Sando" and "Fushikaden" (these three books form the doctrine of Noh art) written by Zeami.
「序破急」の語は、猿楽、世阿弥の書『花鏡』、『三道』、『風姿花伝』で触れられているので、有名である。