You call this Classical?
Have choirs in it does not mean to be Classical. Could be Techno and/or Misc. So by 'adding some beatz' then you can say 'this is ma song'? What the fuck is that?
However, you cannot use the vocal in this, it's copyrighted. If I'm you then I shall toss this song to scrap right now before I get my account ban for using copyrighted stuff.
I won't report you, but someone else will.
Please contact me if you would like to use this in a project. We can discuss the details.