Hi all,
I have a question regarding complicated orchestral material. Note that I
don't need a solution right now, only a plausible estimate if that's
possible to implement at all.
Consider the situation of a staff with two partcombined voices (say,
flutes). If there are spots (measures or ranges of measures) where the
voices are so individualized or complex that the part combination
becomes unreadable I would like to split this range (measure) to two
individual staves.
The attached image shows the (manually constructed) intended result.
Let's assume I would consider m. 7 too complex to be combined and
therefore want the whole "current" system to be split in two staves.
The ideal way would be to have an automatic function that I can call
within such a measure (tagging it as "non-combinable") that would:
* Determine in which system I'm currently in and from where to where
it spans (i.e. previous and next line break)
* Create a temporary staff for exactly that range
* Copy the music of the second voice to that staff
* remove the second voice from the current staff
* (suppress partcombine texts)
In the potential score at hand the music will be maintained in a measure
based grid. That means if I could get just the first of these (i.e..
determining the current and previous line breaks) I *might* be able to
achieve something. But it would be a great feature (and a "selling
point" for LilyPond) if we could integrate it. I got this request from a
professional engraver who says it's a problem he's dealing with all the
time: manually handling the combination and temporary splitting of
voices in a staff - and especially fixing things if the line breaking
happens to change. He said it would be a dramatic advantage if LilyPond
could do that automatically.
Any suggestions welcome.
Urs
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