Indeed--you can still map it onto the torus but the lattice doesn't line up neatly; you get irrational spirals that cover the surface. But, since this is in th

Indeed--you can still map it onto the torus but the lattice doesn't line up neatly; you get irrational spirals that cover the surface. But, since this is in the context of Trane and Lateef, I think ET is a reasonable assumption.