There IS no "song" on the whole video which has been chopped up into little bits of people supposedly dying (very entertaining!). All there is are little individual snippets of incidental music, all really brief.
That's not 'pernickety', that's just trying to work out what the actual question is.
Asking the right question to get the answer you seek should be the obvious thing to do if you want the right answer. However, it's not obvious to most people. :-))