Carol Malus Dienheim - Sforzando no Zankyou (Adult/Bishounen Version)

Playing with an App on my phone I found this and I liked it. Basically, the song's pitch was reduced so it sounded older than the way Carol's VA performs it, resulting in a voice that sounds a bit older (or as some have said, and androgynous guy). This was a basic thing, and no Copyright infringement is intended.