It is an absolutely insane mix that absolutely works. They even use traditional Mongolian folk songs that sing about the open steppes and good horse and praise Genghis Khan. Just set to metal.
Modern metal is stagnating hard at the moment. Everyone is locked into the growl/scream thing and the community has fragmented into a ridiculous number of sub-genres which dilutes and demeans the energy that the metal style of music was suppose to deliver. There are exceptions and break-aways but I was afraid that the genre as a whole was done for.
Tengger Calvary brings us back to the roots. Driving rythyms, distorted guitars and high energy and lots of fun.
For a little more context and comparison here is some traditional Mongolian throat singing: