> The ligature is apparently not printed by a `VaticanaLigature` but
> by a `NoteHead` (try `\override NoteHead.color = blue`). A bit
> disconcerting.
Interestingly, adding
```
\addLink NoteHead "writing-pitches"
```
doesn't help for `VaticanaLigature` (but works for normal note heads).
This looks like a problem deep in `vaticana-ligature-engraver.cc` (and
`mensural-ligature-engraver.cc`, which has exactly the same problem
for `MensuralLigature`).
> Divisio fails because its stencil is later reset by the engraver
> according to `breathMarkType`. This appears to work: [...]
Thanks!
Werner