ChaosLife: The Song Ruiner, destroying your love for music in mere seconds.
(And to answer an oft-repeated question, the particular song she ruined for me this time was Balkan Express by Gramatik. It was a short affair, now I can’t love it anymore.)
It has a gif now, thanks to Theditor.
Also, he was kind enough to provide a mashup of the horses with their intended music. In his own words, do with that as you will.