2009/7/3 Marc Hohl <m...@hohlart.de>:
> Programmierfehler: cannot find context:
> Fortsetzung, die Daumen drücken
> TabVoiceProgrammierfehler: cannot find context:
> Fortsetzung, die Daumen drücken
> TabVoiceVorverarbeitung der grafischen Elemente...
> Solving 1 page-breaking chunks...[1: 1 pages]
Hmm, some rather poor formatting for this programming error: the
context string is further down the log since it's not part of the
error string.
> 1) Apparently I made some mistakes, but I don't understand the error
> messages.
The error comes from the Voice context in your snippet, since it can't
find a TabVoice to apply the setting to. Try this instead:
#(add-grace-property 'Voice 'TabNoteHead 'font-size -4)
Because TabVoice is an alias of Voice, the 'font-size setting will be
applied correctly, but ignored in any Voice contexts.
> 2) Can I automatize the function call so that the user doesn't have to call
> add-grace-property in every new TabVoice?
> I tried to put this in a layout block, but
> \layout {
> \context {
> \TabStaff
> #(add-grace-property 'TabVoice 'TabNoteHead 'font-size -4)
> }
> }
> gives an error message.
You can't put functions inside a context definition.
I'd suggest making this part of the default grace settings by adding
the override directly to graceSettings and make-voice-props-set.
Regards,
Neil
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