Reading keyboard tablature

[steltz]

I need some help with this in order to tag two pieces by Radeck -- the Courante Sarabande and Engellischer Mascharada, and one by Scheidemann -- Englische Mascharada. I've never seen keyboard tablature before, so I need to know if this for one keyboard player or more. Anyone adept at reading this?

[Fynnjamin]

Keyboard tablature is almost always for one player (two players would be explicitly specified).
I've been meaning to create an easy introduction/tutorial to reading tablature - would anyone be interested?