Quote Originally Posted by ark View Post
...Also, it seems to me that it is possible for two bars to be separated by two barlines, which you would do by putting one after the first bar and another before the second. That seems weird for me, and I would think there is no reason ever to do it; but perhaps you could tell me if that ability is intended to be useful and, if so, what its effect is?
Putting two single barlines on top of each other should have no real effect other than being slightly messy if you notice it. I try to delete a single barline when I need a double, or repeat (or final) there. Either the left beat or the right beat on each side of the barline can be used to create the barline needed.