Greetings : this has been added as issue #1227,
Ralph
On Tue, Aug 17, 2010 at 2:43 AM, Patrick Schmidt <p.l.schm...@gmx.de> wrote:
>
> Am 17.08.2010 um 05:30 schrieb Carl Sorensen:
>
>
>
>>
>>
>> On 8/16/10 3:30 PM, "Patrick Schmidt" <p.l.schm...@gmx.de> wrote:
>>
>> Dear LilyPonders,
>>>
>>> while trying to typeset some vocal music I encountered some
>>> difficulties with \autoBeamOff:
>>>
>>> 1) \autoBeamOff has no effect on other voices when used in a global
>>> variable/ghost voice. It has to be turned on explicitly for each
>>> voice. This is probably intentional but AFAIK not mentioned in the docs.
>>>
>>
>> This is probably an argument for eliminating \autoBeamOff. As can be seen
>> in ly/property-init.ly, \autoBeamOff is an alias for
>>
>> \set autoBeaming = ##f
>>
>> If you want it to apply in a global voice, simply do
>>
>> \set Score.autoBeaming = ##f
>>
> Ah, OK.
>
>
>>
>>> 2) \autoBeamoff shows strange effects in combination with 16th notes
>>> and \partcombine. \autoBeamOff only effects 16th notes when they
>>> happen to be in the first measure of a combined part. All following
>>> measures containing 16th notes are beamed automatically as if
>>> automatic beaming had been turned on again. This looks like a bug to
>>> me!? (No problems with \autoBeamOff in standard polyphonic notation)
>>>
>>
>> This is a *very* challenging bug. Partcombine apparently works with 3
>> voices -- stem up single, stem down single, stem up combined.
>>
>> An \autoBeamOff call in the first argument to partcombine will apply to
>> the
>> voice that is active at the time the call is processed, either stem up
>> single or stem up combined. An \autoBeamOff call in the second argument
>> will apply to the voice that is stem down single.
>>
>> In order to use \autoBeamOff to stop all autobeaming, it will be necessary
>> to use *3* calls to \autoBeamOff.
>>
>> A workaround is to \set Staff.autoBeaming = ##f
>>
>> Note -- I do consider this to be a bug with partcombine. There is a
>> workaround, however.
>>
> Thanks!
>
>
>> Here is a tiny example (you can uncomment and comment the various lines to
>> change the behavior):
>>
>> \version "2.13"
>>
>> {
>> %\set Staff.autoBeaming = ##f % turns off all autobeaming
>> \partcombine
>> {
>> \autoBeamOff % applies to split up stems
>> \repeat unfold 4 a'16
>> %\autoBeamOff % applies to combined up stems
>> \repeat unfold 4 a'8
>> \repeat unfold 4 a'16
>> }
>> {
>> \autoBeamOff % applies to down stems
>> \repeat unfold 4 f'8
>> \repeat unfold 8 f'16 |
>> }
>> }
>>
>>
>> In combination with \autoBeamOff \partcombine seems to require some
>>> curly braces, e.g.:
>>>
>>> \partcombine { \autoBeamOff\MusicPartOne } { \autoBeamOff
>>> \MusicPartTwo }
>>>
>>> I didn't find this information in the docs.
>>>
>>
>> This problem is not specific to \autoBeamOff. \partcombine always works
>> on
>> the next two music expressions. Without the curly braces it would be
>> \autoBeamOff and \MusicPartOne that would be combined.
>>
> Sounds reasonable!;-)
>
> HTH,
>>
> It did!
> Thank you very much!
>
> patrick
>
>
>> Carl
>>
>>
>>
>
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