Dirty Loops are a Swedish band who took the internet by storm in 2012 with a series of covers. The trio took existing popular songs, rearranged them and had musicians all over the world trying to figure out how they did it.
This song is a cover of Adele's hit 'Rolling In The Deep'. If you don't know it, listen to the original here:
There isn't much apart from the melody that Dirty Loops don't change.
How many strings does the bass have? Why does it have so many?
How is the tempo different to the original?
Where do the other voices come from in the chorus?
What do the bass and piano do from 1:52 to 2:20?
Is this version in the same key as the original?