2521520 jmdict A [id=1072405] 素声;白声 しらごえ;しらこえ [1][n] shrill voice [2][n] [note="usu. 素声"] unaccompanied part of the Heike Monogatari chanting [see=2521260・平曲[1]] [3][n] part of an unaccompanied poem (in noh)