Hi Thibault, hi Carl,
Carl, your workaround's find but the hidden stem and flag could affect the
staff-staff spacings.
(A hidden whole/half note would affect the horizontal spacing)
E.g. :
\version "2.22.0"
\new PianoStaff <<
\new Staff << \relative { e'16 f g e e f g e } \\ d'2 >>
\new Staff { \clef bass e8 g e c }
>>
\new PianoStaff <<
\new Staff << \relative { e'16 f g e e f g e } \\ d'2 s >>
\new Staff { \clef bass << { \hideNotes f16 } \\ { e8 g e c } >> }
>>
% vs:
\new PianoStaff <<
\new Staff << \relative { e'16 f g e e f g e } \\ d'2 s >>
\new Staff { \clef bass << { \hideNotes\omit Stem f4 } \\ { e8 g e c } >>
}
>>
% vs:
\new PianoStaff <<
\new Staff << \relative { e'16 f g e e f g e } \\ d'2 s >>
\new Staff { \clef bass << { \hideNotes f1 } \\ { e8 g e c } >> }
>>
BTW, one basic question : is it a convention that an alto voice be align to
the lower voice ?
Cheers,
Pierre
Le mar. 2 févr. 2021 à 19:28, Thibaut Horel <thibaut.ho...@gmail.com> a
écrit :
> When trying to typeset the attached bit of music (this is bar 18 of the
> Fugue in BWV 881), I encountered a problem captured by the following
> minimal example:
>
> ------
> \version "2.22.0"
> \new PianoStaff <<
> \new Staff << \relative{e'16 f g e} \\ d'4 >>
> \new Staff { \clef bass e8[ g] }
> >>
> ------
>
> In this example, I would like the e8 in the lower staff to be aligned
> with the d4 in the upper staff. However, because of a note head
> collision, the d4 in the upper staff is shifted to the right, and the e8
> from the lower staff is instead aligned with the e16 in the upper staff.
>
> I was able to obtain the correct behavior by adding \once\override
> NoteColumn.X-offset = 1.25 before the e8 in the lower staff. But there
> are two things I don't like about this solution:
>
> 1. if I understand correctly, X-offset is measured in staff-space, so I
> am worried this might not scale properly when changing the note head
> size (for example by using a different font). It would be nicer to be
> able to express the offset in note head width, as for the force-hshift
> property for example.
>
> 2. My solution requires trial and error to find the correct value for
> the X-offset, whereas what I am trying to achieve can be expressed
> easily at the semantic level: I would like the e8 in the lower staff to
> be considered part of the second voice of the upper staff for vertical
> alignment purposes (in particular it should be shifted at the same time
> in case of a collision).
>
> Is there a better way to achieve what I am trying to do? Any insight
> into this problem would be greatly appreciated.
>
> Thanks,
> Thibaut
>
>
