When Moronaga began playing biwa, eight great dragon kings joined him as supporting actors, and Emperor Murakami himself played an admirable piece of secret music, and danced haya-mai.
師長が琵琶を弾き始めると、八大龍王が助演者として加わり、村上天皇も自ら見事な秘曲を奏で、舞を舞う（早舞）。