Farmer Shane believes the first thing to be done when endeavoring to scythe a field is to find yourself a pair of good ol' "Scything Socks". Old timers believed that a sturdy pair of socks not only secured your legs from the whipping grasses and grain heads, but also put the fear of God into the field.* Farmer Shane endorses "Ring of Fire" Scything socks...guaranteed to quake any grass.
We use a European Scythe, with the straighter snath. 
It is much easier on the back. The blade does all the work, and the tip of the blade must be scrupulously maintained with a wet stone every twenty cuts or so. All the effort is in the swing of your torso-not your arms. (It's good practice for aspiring tennis players)
The windrow is the fallen grass left behind as the scyther progresses through the field.
Next year we plan to scythe the cover crop as we prepare successive beds to transplant our CSA veggies in, and then use the fallen crop as mulch.
In days past, whole teams of men used to scythe fields of grain for Fall harvest. They would work in a line, 4 or 5 abreast, and steadily cut the grain. Apparently large amounts of "the juice of the barley" were consumed on such days...and a good scytheing man was measured by how straight his windrows were...no matter the quantity imbibed. Gives a whole new twist to "the straight and narrow".
*l.f.f. tall tale