Re: Marking cross-staff unisons

[Neil Puttock]

On 25 February 2010 17:08, Michael J. O'Donnell
<address@hidden> wrote:
> I have a 4-staff SATB choir score, and I would like to mark unison
> sections with some nice vertical bracketing. The bracket style for
> arpeggios looks good, but the cross-staff arpeggios appear not to
> support it (the documentation says that cross-staff parentheses are not
> supported, and it appears that this applies to brackets also). Grid
> lines are a bit ugly for this purpose. I couldn't find anything in the
> archive nor snippets (but I don't always think of the right search
> terms). Ideas?

Are you using \arpeggioBracket?  It won't work at the PianoStaff or
ChoirStaff level, so you'll have to override the stencil for bracketed
style explicitly:

\override ChoirStaff.Arpeggio #'stencil = #ly:arpeggio::brew-chord-bracket

Regards,
Neil