I listened to it and it's not quite as easy as it might first sound; there's some surprisingly fast bit in there, I was surprised to find them in a Smashing Pumpkins song to be honest.

Just learn the parts slowly, piece by piece; once you've learned them slowly you can start trying to get them up to speed. Keep at it; you'll get it sooner or later
R.I.P. My Signature. Lost to us in the great Signature Massacre of 2014.

Quote by Master Foo
“A man who mistakes secrets for knowledge is like a man who, seeking light, hugs a candle so closely that he smothers it and burns his hand.”