Re: Simplify the NullVoice context (issue 117050043 by address@hidden)

[David Kastrup]

"Keith OHara" <address@hidden> writes:

> On Mon, 08 Sep 2014 16:28:24 -0700, Dan Eble <address@hidden> wrote:
>
>> How about placing the voices inside a VoiceGroup context, moving the
>> Accidental_engraver there, and leaving the NullVoice outside, like
>> in my recent partcombine experiments?
>>
>
> Usually, accidentals are reported up the context hierarchy.
> We can do things like this
>     %% Cautionary accidentals to cancel accidentals anywhere on the score
>      \set Score.localAlterations = #'()
>      \set Score.autoCautionaries   % 0 -> current measure only
>          = #`(Score ,(make-accidental-rule 'any-octave 0))
>
> If reports of accidentals do not penetrate your VoiceGroup, it would
> be an exception to the general rule.  I think it might be because
> localAlterations is not initialized in VoiceGroup.

Then it should be inherited from above.  But explicit initialization to
##f should stop updates to it.  Or if it doesn't, it's a perfectly
reasonable change to make it do that.

Probably should work without an extra VoiceGroup though.

-- 
David Kastrup