Easiest way IMO would be to get the Shazam app on your phone/tablet and use that. Simply play the video on your computer and at the same time press
the "Shazam" button in the Shazam app on your phone. The app listens to music and is really good at identifying even obscure things. It's not 100%,
but it's very good.
Not a 100%? It doesn't falsely recognize songs... it's either in the database or not (unregistered music). Having that said, yes, it's 50/50. But with
registered music it's 100%. Same with soundhound. It won't mistake one song for another though.
Ive been wondering about this several times, and what I do is simply to ask in the comment-section.
It havent failed me yet, also shazam is good..but not perfect.