Re: What the heck is Y-offset-callback?

[Mats Bengtsson]

When you ask these questions on the LSR examples, could you please
include a pointer to the full example in LSR. Then it's much easier to
provide a relevant answer to your question.
Just as in another LSR related question you sent some weeks ago, it seems
that the file hasn't been properly updated using convert-ly.
Well, it turns out that convert-ly isn't smart enough to automatically 
convert
Y-offset-callbacks settings, but it will at least tell you that the 
change happened
in version 2.7.15 and that these settings have been replaced by "grob 
closures".

  /Mats

Cameron Horsburgh wrote:
> Hi folks,
>
> There's a snippet in the LSR which contains a reference to the
> Y-offset-callbacks:
>
> \override Score.VoltaBracket #'Y-offset-callbacks = #(list 
> ly:staff-symbol-referencer::callback)
>
> LilyPond compiles it, but warns me:
>
> warning: can't find property type-check for Y-offset-callbacks'
> (backend-type?).  perhaps a typing error?
> warning: doing assignment anyway
>
> I can't find any reference to the Y-offset-callbacks in the
> VoltaBrackets section of the Program Reference. Can anyone tell me
> what it is, if I need it and what I should do with it?
>   

--
=============================================
        Mats Bengtsson
        Signal Processing
        Signals, Sensors and Systems
        Royal Institute of Technology
        SE-100 44  STOCKHOLM
        Sweden
        Phone: (+46) 8 790 8463                         
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