It's a Fan Made video about a song a Let's Player named Gronkh(Click me, I'm the channel link) (a really well known lets player in germany, about more than 145.000 subscribers) allways sang when he had no backgroundmusic AND mined coal. He mentioned some time that a metal remix of it's song where "nice". So RahmschnitzelZeug take it and maked this remix. Meanwhile are the Lyrics in the description. The word "Cholera" is some wordplay to coal. But only in soundmeanings. Kohle | Cholera.