I've had this film in my computer for 3~4 years. And I didn't believe it was his voice at first. Because I originally got the file without images, that is mp3 file. The high tunes sounded like voilins for me and the vibrations are too similar to distinguish. After realizing the truth, actually it' been hard to know more information from him, he seems a mysterious person from Russia, I was so glad that there lives a person, a man who can sing those high tunes just like me. But his voice sounds more like a chorus boy not an opera singer even though he has sung many opera arias in his concert.
For me, I have to honestly say that I don't like his voice very much but somehow I admire the success he has made as a classical singer. And I've been wondering that he's an eunuch or not, surely I am not. haha!!!