First of all, the file seems fine to me, I can play it without any problems. If you do encounter problems here's a Youtube link:
There is no score for this piece. I learn really most pieces by heart while composing them, because I have noticed that computer programs for composing such things are really incapable of doing the thing I want them to do, and take way too long.
I could write it down by hand, as the great composers did but I have a lot of things to do in a day, can't afford to do that.
I can therefore of course not assure anyone the music isn't stolen, but I really doubt it's that good.