Longsword techniques: zornhau, oben abnehmen, duplieren, mutieren

Warning: the volume is too loud now. A little bit outdated Zornhau and associated techniques with longsword from Lichtenauers Kunst des Fechtens: Zornhau ort, Bis stercker, Nym es nyder, Oben abnehmen, Duplieren (with Bruch), Mutieren. Source Anton Kohutovic, Martin Tibensky