Talk:Hiyama Kiyoteru/@comment-186.53.21.76-20120531042837/@comment-5051846-20120702083104

Okay, now you've lost me. I was sure 'mature' referred to the maturity of the singer, fully developed organs for singing, etc.

Go on, explain maturity then. You have said its not the pitch and its not the age. Enlighten me.