Re: The "Gigsaw": about polymetric

[Philippe Hezaine]

Philippe Hezaine a écrit :
> Hi all,

> i'm wondering if I can get rid of this issues:
>
> 1. The output is OK but I have many Avertissement : échec du contrôle de
> mesure (barcheck) in the console because of the whole rests. Of course
> the Gigsaw's process follows the same way. I read the answer of Mats
> Bengtsson a few days ago about the same problem with polymetric bars.
> But may be I'm missing something in the layout or the \score. If you
> have time can you look at this file?
> Sorry that isn't a minimal exemple. Deliberately the bar check are
> commented. In this case it doesn't matter. In case I'm not wrong
> wouldn't be an example for a feature request?

Wow! Here is a minimal example.
First i discovered that if I commented out all the block \midi I got rid
of these annoying messages. I was very astonished by this.
But I did need to get a midi file output!
Suddenly I have the idea to write different context inside the \midi
block. And voilà!
I hope all will be going right in the Gigsaw which isn't a tiny file.
It will take me a few time to test it.
Am I on the right way?
--
  Phil.

\version "2.12.2"

 #(ly:set-option 'delete-intermediate-files #t)

pulse = \drummode {

  \time 2/2

        <bd hhc>8 r8 hhc8 r8 hhc8 r8 hhc8 r8 %|

        }

Polyun = \drummode {

  \time 7/8

        sna8 r8 r4 wbl8 r4 %|

  \time 6/8

        tomh8 r4 wbl8 r4 %|

  \time 5/8

        toml8 r4 wbl8 r8 %|

  \time 4/8

        tomfl8 r8 wbl8 r8 %|


             }

Polydeux = \drummode {

  \time 7/8

        R1*7/8 %|

        }

Polytrois = \drummode {

  \time 7/8

        R1*7/8 %|

             }

melodiques = \relative c {
%       \set Staff.midiInstrument = "standard kit"

 \time 4/4 

        R1 %|

             }


 \score {
    <<
        \new Staff
      <<
        \set Staff.instrumentName = "Melod"
        \new Voice { \melodiques }
      >>
                        %%%%%%%%%%%%%%%%%%
      \new DrumStaff
     <<
        \set Staff.instrumentName = "Poly3"
        \new DrumVoice { \Polytrois }
   >>
                        %%%%%%%%%%%%%%%%%%
      \new DrumStaff
     <<
        \set Staff.instrumentName = "Poly2"
        \new DrumVoice { \Polydeux }
   >>
                        %%%%%%%%%%%%%%%%%%
      \new DrumStaff
      <<
        \set Staff.instrumentName = "Poly1"
        \new DrumVoice { \Polyun }
   >>
                        %%%%%%%%%%%%%%%%%%
      \new DrumStaff
      <<
        \set DrumStaff.instrumentName = "Drums"
        \set DrumStaff.midiInstrument = "standard kit"
        \new DrumVoice { \pulse }
      >>
                        %%%%%%%%%%%%%%%%%%
    >>

  \layout {
        \context {
           \RemoveEmptyStaffContext
           \override VerticalAxisGroup #'remove-first = ##t
                }

    \context { \Score
        \remove "Timing_translator"
        \remove "Time_signature_engraver"
        \remove "Default_bar_line_engraver"
        }

    \context { \Staff
        \consists "Timing_translator"
        \consists "Default_bar_line_engraver"
        \consists "Time_signature_engraver"
        }

        \context { \DrumStaff
        \remove "Axis_group_engraver" 
        \override VerticalAxisGroup #'remove-empty = ##t
        \override VerticalAxisGroup #'remove-first = ##t
        \consists "Hara_kiri_engraver" 
        \consists "Timing_translator"
        \consists "Default_bar_line_engraver"
                }
        }

  \midi {
    \context {
      \Score
      \remove "Timing_translator"
      tempoWholesPerMinute = #(ly:make-moment 120 4)
             }

    \context { \Staff
        \consists "Timing_translator"
             }

    \context { \DrumStaff
        \consists "Timing_translator"
             }

       }
    }