how to?

[evan0437]

so basically i was wondering what was done in an editing program to make the songs different here is the one i want to know what was done
https://www.youtube.com/watch?v=q7Cqo-qHhTA

and heres the original
https://www.youtube.com/watch?v=iUiTQvT0W_0

any help would be extremely grateful