Re: grace note (first note) in a measure that follows an end of a repeat volta displays weirdly

[Kenneth Wolcott]

Hi David;

  Thank you for the elaboration, I think I will finally get this!

Thanks,
Ken

On Wed, Jul 6, 2022 at 11:41 AM David Wright <lilylis@lionunicorn.co.uk> wrote:
>
> On Tue 05 Jul 2022 at 23:56:36 (-0700), Kenneth Wolcott wrote:
> > On Tue, Jul 5, 2022 at 11:43 PM Hans Aikema <hans.aikema@aikebah.net> wrote:
> > > On 6 Jul 2022, at 07:25, Kenneth Wolcott <kennethwolcott@gmail.com> wrote:
> > > >  However, the first measure that follows a repeat section (without
> > > > alternatives) there is a slashed grace note that Lilypond displays in
> > > > a measure all by itself, despite my attempts to place a grace note
> > > > with a skip at the same location in a different (unspecified) voice.
> > > >
> > > > Is this problem resolved by specifying voices?
> > > >
> > > > What am I doing wrong here?
> > >
> > > See
> > > https://lilypond.org/doc/v2.22/Documentation/notation/special-rhythmic-concerns
> > >
> > > section 'known issues and warnings'. It deals with exactly your issue. 
> > > You need to have a grace skip in the other stave.
>
> The example has only one voice in each staff, and it probably ought
> to mention that the same method should be applied to all voices.
>
> So the answer is that every Voice must have its own grace note or skip.
>
> >   Thank you.  I thought I had done that :-(  I had placed the grace
> > note with the skip in lh_two, but apparently it had no effect
>
> Any voice that doesn't contain the grace duration will draw another
> barline in the wrong place. In your case, lh_one still lacked it.
>
> >   I placed a << {} \\ {} >> construct in the lh_one bar 10 containing
> > the grace note with the skip and it works.
>
> Adding more structure overcomplicates it. All you need in lh_one is:
>
>   \grace s8 a4\rest <f bf df'>2 q4  | % m10
>
> similar to rh_two.
>
> >   Wow, intricate little bug, eh?  Guess it might have worked if I had
> > used specified voices AND the grace skip(s).
>
> Completeness and consistency.
>
> Cheers,
> David.