Hi Robert,
please always try to give a minimal example. This could look like this:
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\version "2.19.81"
\new PianoStaff <<
\new Staff \with {
connectArpeggios = ##t
} <<
{
a''2\arpeggio
} \\ {
<a' e''>\arpeggio
}
>>
\new Staff {
<f f'>\arpeggio
}
>>
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
Note that I used { } \\ { } for polyphony here. You should do this too
or use \voiceOne and \voiceTwo instead of \stemUp and \stemDown, because
\voiceXXX changes not only stem directions but also other stuff in
polyphony.
Am 08.06.2018 um 13:46 schrieb Robert Blackstone:
2 The testsnippet does produce the arpeggio's but I do not know how to
connect the arpeggio's in the individual staves staff without connecting
them across the staves. I played with the various " \set
Staff.connectArpeggios"-options in the snippett but none of them gave me
the desired result.
As one can see at the Internals Reference
(http://lilypond.org/doc/v2.19/Documentation/internals/arpeggio_005fengraver)
the Arpeggio_engraver lives in Voice contexts. That’s why arpeggios
don’t span multiple voices as a default behaviour.
You could move that engraver to Staff context. But that would lead to
two problems/questions:
1. Now *all* arpeggios in the Staff span *all* voices. You probably
don’t want that in most cases.
2. What about that connectArpeggios thing? There seems to be an engraver
at PianoStaff level that listens to that property and connects “Voice
arpeggios” to “PianoStaff arpeggios”.
Indeed there is such an engraver: The Span_arpeggio_engraver, see
Internals Reference
(http://lilypond.org/doc/v2.19/Documentation/internals/span_005farpeggio_005fengraver).
There you’ll see that it lives in PianoStaff contexts. That’s why
\set-ting Staff.connectArpeggios has no effect in the snippet above. But
you can add this engraver to Staff level too: Just add the line
\consists Span_arpeggio_engraver
before
connectArpeggios = ##t
in the \with block in the code above.
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