* I notice is that by default the tips of the slur exceed both the
length of a beam and the centers of the leftmost and rightmost note
heads. What do you think about adjusting the default to move the
* Compared to tuplet brackets I think that there should be less
* What about support for broken slurs, with the tuplet number
* Shall we add macros to activate tuplet slurs, similar to stuff that
activates dashed slurs, say?