Re: \RemoveEmptyStaves not removing first line

[Lukas-Fabian Moser]

> > Where would you expect the Ambitus marker to show up if you do not
> > want the staff to appear in the first system?
> First entry?  I am not sure that the interfaces the Ambitus_engraver
> exercises would allow to make that difference, but if they did, this
> would be a reasonable expectation.  Though probably rather hard to
> implement, given how late in the typesetting stage "empty" staves get
> pruned.
Yes, that's probably the only sufficiently reasonable place to expect it.

But: It seems to me that the whole point (or, at least, the most 
important application) of the Ambitus indication is to enable users of 
the score to judge the tessitura "at first glance" (even though, of 
course, for a reliable judgement one would have to look at the actual 
music in more detail). This application is somewhat hindered if one has 
to look for the right system containing the first entry of a voice first.

So, to be honest, I'm not sure whether trying to make the 
Ambitus_engraver compatible with hiding empty staves would be worth the 
effort, especially if (as you say) that effort would be large.

Best
Lukas