Provide option to allow long notes to span barlines

It would be good to have a selectable option to allow long notes to span barlines, without having to resort to the tedious and time consuming hack of entering 1:1 tuplets and hiding the tuplet apparatus.

[That’s from my lilypond by the way.]

When you have lots of these in a score it gets very lengthy to do. Not as though this is somethikng exclusively modernist. One finds it in baroque scores too.