Re: Conflicting RehearsalMarks

[Jean Abou Samra]

Le 23/05/2022 à 14:28, Thomas Morley a écrit :
> Hi,
>
> consider the code below
>
> \layout {
>    \context {
>      \StaffGroup
>      \consists "Mark_engraver"
>      \consists "Staff_collecting_engraver"
>    }
>    \context {
>      \Score
>      \remove "Mark_engraver"
>      \remove "Staff_collecting_engraver"
>    }
> }
>
> <<
>    \new StaffGroup << \new Staff { \mark "foo" R1 }  \new Staff { R1 } >>
>    \new StaffGroup << \new Staff { \mark "bar" R1 }  \new Staff { R1 } >>
>    \new StaffGroup << \new Staff { \mark "buzz" R1 } \new Staff { R1 } >>
> working fine with 2.22., i.e. no warnings and three different
> RehearsalMarks are printed.
> With 2.23.9 I get warnings about conficting events (imho, there are no
> conficts, the Mark_engraver is moved!) and only the first one, "foo"
> is printed at every StaffGroup.
>
> How to fix?



See the Changes document
(https://lilypond.org/doc/v2.23/Documentation/changes/index.html).


"""
The new |Mark_tracking_translator| takes over from |Mark_engraver| the 
decision of
when to create a mark. |Mark_engraver| continues to control formatting and
vertical placement.

By default, |Mark_engravers| in multiple contexts create a common sequence
of marks. If independent sequences are desired, multiple|
Mark_tracking_translators| must be used.
"""

Thus you also need to move Mark_tracking_translator around.


\version "2.23.9"

\layout {
  \context {
    \StaffGroup
    \consists "Mark_engraver"
    \consists "Staff_collecting_engraver"
    \consists "Mark_tracking_translator"
  }
  \context {
    \Score
    \remove "Mark_engraver"
    \remove "Staff_collecting_engraver"
    \remove "Mark_tracking_translator"
  }
}

<<
  \new StaffGroup << \new Staff { \mark "foo" R1 }  \new Staff { R1 } >>
  \new StaffGroup << \new Staff { \mark "bar" R1 }  \new Staff { R1 } >>
  \new StaffGroup << \new Staff { \mark "buzz" R1 } \new Staff { R1 } >>
>>



Jean