Is there an easy way to mix metered (e.g. 4-4) and unmetered (e.g. “X”) in the same system without having notes / beats in the unmetered bar line up with beats in the metered bar? Here’s what I’m trying to do:
I don’t understand how the soprano should be able to sing in a different tempo. How is the soprano overtaking without getting in front?
Do you want the soprano to finish early?
May be you are looking for some kind of tuplets, that the soprano line seems faster.
Anyway, an interesting concept.
About a page or two later, the soprano continues, unaccompanied, with the rest of the ensemble waiting until that line is finished. The music then resumes in a normal, coordinated fashion.
You should be able to put an open time signature on a single staff as well, by putting the caret on the solo soprano staff, Shift+M, X, then confirm with Alt/Opt+Enter.
For now, polytempo is only achievable in the way you’ve deduced already, by deciding on an exact ratio and using some long and hidden tuplets. However, you should definitely be able to hide tuplet brackets and numbers with this combination of Properties:
And because in Western notation there is never a true 1:1 correspondence beteween horizontal distance and performance time, the two ‘streams’ of music will still affect each other’s spacing. This of course is only exacerbated in vocal music by the presence of lyrics.