Hello Chris,
sorry for the late reply.
> Issuing a \partCombineApart between two tied notes results in a
> warning that the tie is unterminated and omits the tie from the
> printed score. Printing the top part by itself creates the tie
> without issues.
>
> Omitting the tie from the top part
> I personally lacked this information on the page "1.8.2 Formatting
> text – Selecting font and font size", mainly the fact that
> text-font-size is in pt (as defined in other sections).
https://gitlab.com/lilypond/lilypond/-/merge_requests/2258
Werner
> This is perhaps not the best place to discuss that, but thinking
> about it, I don't understand why text-font-size is dimensionless
> (when it actually does have a dimension). Wouldn't text-font-size =
> 12 \pt be more intuitive (and, at the same time, allowing also other
> units)?
This is du