Re: Change staff and cross staff

[Knute Snortum]

Oh, this is so close!  The snippet provided doesn't have the slur from
the lower g sharp to the b in it, so I tried adding it.  The b is in
the lower hand so I tried slurring to the e and then use \shape to fix
it, but it produces a programming error.  Here's the modified
snippet...

%%% Start
\version "2.21.7"

\layout { \context { \PianoStaff \consists #Span_stem_engraver } }

rhmusic = {
\time 3/4 \key e \major
\change Staff = "lower"
\stemUp <gis b>8[( r16 % added start paren
\change Staff = "upper" e'16]) % added end paren
}

lhmusic = {
\key e \major
\clef "bass"
<< { s8. \crossStaff {b16} } \\ { e,4 } >>
}

\new PianoStaff
<<
\new Staff = "upper" {\rhmusic}
\new Staff = "lower"{\lhmusic}
>>
%%% End

...and here's the output I get:

Starting lilypond 2.21.80 [Untitled (2)]...
Processing `/tmp/frescobaldi-l36z197r/tmplwcszgtc/document.ly'
Parsing...
Interpreting music...
Preprocessing graphical objects...
Finding the ideal number of pages...
Fitting music on 1 page...
Drawing systems...lilypond:
/home/gub/NewGub/gub/target/linux-64/src/lilypond-git.sv.gnu.org--lilypond.git-stable-2.22/flower/include/interval.hh:256:
T Interval_t<T>::center() const [with T = double]: Assertion
`!is_empty ()' failed.
Exited with return code 6.

--
Knute Snortum

On Sat, Nov 7, 2020 at 1:32 PM Knute Snortum <ksnortum@gmail.com> wrote:
>
> That looks good!  Thanks!
>
> --
> Knute Snortum
>
>
> On Sat, Nov 7, 2020 at 11:09 AM damianlegassick <damianlegassick@mac.com> 
> wrote:
> >
> > Try this for starters
> >
> > \version "2.21.7"
> >
> > \layout { \context { \PianoStaff \consists #Span_stem_engraver } }
> >
> > rhmusic = {
> > time 3/4 \key e \major
> > \change Staff = "lower"
> > \stemUp <gis b>8[ r16
> > \change Staff = "upper" e'16]
> > }
> >
> > lhmusic = {
> > \key e \major
> > \clef "bass"
> > << { s8. \crossStaff {b16} } \\ { e,4 } >>
> > }
> >
> > \new PianoStaff {
> > <<
> > \new Staff = "upper" {\rhmusic}
> > \new Staff = "lower"{\lhmusic}
> > >>
> > }
> >
> > On 7 November 2020 at 19:04, Knute Snortum <ksnortum@gmail.com> wrote:
> >
> > Here's a better MWE with my try using voices in the left hand:
> >
> > %%% Start
> > \version "2.20.0"
> > \language "english"
> >
> > staffUp = \change Staff = "upper"
> > staffDown = \change Staff = "lower"
> >
> > rh = \relative c' {
> > s8. \crossStaff e16
> > }
> >
> > lh = \relative c' {
> > \clef bass
> > << { <gs b>8[ r16 b] } \\ { e,,4 } >>
> > }
> >
> > \score {
> > \new PianoStaff <<
> > \new Staff = "upper" { \rh }
> > \new Staff = "lower" { \lh }
> > >>
> > \layout {
> > \context {
> > \PianoStaff
> > \consists #Span_stem_engraver
> > }
> > }
> > }
> > %%% End
> >
> > --
> > Knute Snortum
> >
> > On Sat, Nov 7, 2020 at 10:48 AM Knute Snortum <ksnortum@gmail.com> wrote:
> >
> >
> > I have a tricky measure in the Chopin Mazurka I'm working on. The
> >
> > notes need to be on the lower staff (from the right hand) and the last
> >
> > chord is cross staff. I'd like to be able to do something like
> >
> > this...
> >
> >
> > %%% Start
> >
> > \version "2.20.0"
> >
> >
> > staffUp = \change Staff = "upper"
> >
> > staffDown = \change Staff = "lower"
> >
> >
> > \relative c, {
> >
> > \staffDown <gs b>8[ r16 <b \staffUp \crossStaff e>
> >
> > }
> >
> > %%% End
> >
> >
> > ..but of course that doesn't work. I tried something with two voices
> >
> > in the left hand, but ran into problems. I've attached a screenshot
> >
> > of the measure.
> >
> >
> > --
> >
> > Knute Snortum
> >
> >