I'm preparing an edition of de Wert's motet "Ascendente Jesu in naviculam" which has an extended stretto section with dotted rhythms across barlines. For this, Harm's Mensurstriche example in the Learning Manual produces a mostly beautiful result.
However, for the sake of those singers who, faced with this passage, find themselves <ahem> all at sea, I would like to avoid notes extending across line-breaks. The idea is to use something like the Completion_heads_engraver that would take effect only at those barlines that coincide with a line break. Does such a thing exist? As a secondary question: Is there a straightforward way to avoid collisions of mensurstriche with beams?
