Re: Best support programs for Lilypond

[Menu Jacques]

Hello Richard,

Thanks for your answer.

If I understand well, backup and forward MusicXML elements change the current 
'position' in a voice along the way.

Why is it difficult to handle that properly?

JM

> Le 14 mars 2016 à 11:28, Richard Shann <address@hidden> a écrit :
> 
> On Mon, 2016-03-14 at 11:08 +0100, Menu Jacques wrote:
>> Hello,
>> 
>>> Le 6 mars 2016 à 16:07, Richard Shann <address@hidden> a écrit :
>>> 
>>> It indeed should be able, but MusicXML isn't well adapted to the task:
>>> note durations are indicated in multiple ways and there is a timer that
>>> can move backwards to indicate notes that are to be sounded at the same
>>> time as other notes and the resulting spaghetti can be very difficult to
>>> interpret. The result can be nothing read at all, or (as in the case
>>> with Denemo's import at least) empty staffs to be deleted, redundant
>>> time signatures to be deleted, or worse, time signatures to be guessed
>>> and inserted.
>> 
>> I’ve tried to find information about the MusicXML timer mentioned by 
>> Richard, but no way.
>> 
>> Can someone indicate where to find some?
> 
> I think it's this
> 
> http://www.musicxml.com/UserManuals/MusicXML/MusicXML.htm#CT-MusicXML-backup.htm
> 
> Description
> 
> The backup and forward elements are required to coordinate multiple
> voices in one part, including music on multiple staves. The backup type
> is generally used to move between voices and staves. Thus the backup
> element does not include voice or staff elements. Duration values should
> always be positive, and should not cross measure boundaries or
> mid-measure changes in the divisions value.
> 
> although the description is typically vague and I'm not sure it
> corresponds much with what people do. The documentation seems to have
> changed a lot since I last saw it, it appears to be machine generated
> for the most part, making it look very comprehensive; unfortunately
> machines don't care whether it means anything.
> 
> Richard
> 
> 
> 
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