Re: partial SpanBar possible?

[Adam James Wilson]

BTW - v. 2.11.32

On 9/4/07, Adam James Wilson <address@hidden> wrote:
> I have a StaffGroup that contains four staves.  Most of the time, I
> want a SpanBar to pass through all four staves.  However, there are
> some points at which I'd like the SpanBar to connect only the bottom
> three staves, or the middle two staves.
>
> Changing StaffGroup.SpanBar #'transparent = ##t wipes out the entire
> SpanBar.  I tried moving the Span_bar_engraver to the Staff context
> and turning on and off transparency for each staff accordingly for a
> given barline, but this results in either (a) the whole SpanBar
> persisting, or (b) no SpanBar at all.
>
> How can I get occaisional "partial" SpanBars in a StaffGroup?
>
> Best,
> Adam
>