Re: musicxml2ly tremolo tag on notes shorter than quarter

[James Lowe]

On 07/05/15 23:21, pls wrote:
> Hi Jörn,
> 
> On 03.05.2015, at 00:23, Jörn Eichler <address@hidden> wrote:
> 
>>> I'm not top posting.
>>
>> For music XML input "<tremolo type="single">2</tremolo>" on an eighth note
>> of C, musicxml2ly creates "c8 :16" which, I think, is incorrect, because the
>> 2 tremolo marks make it a 32th tremolo.
> 
> thanks for the report!
> 
> Yes, you are right, it’s a bug and all beamed notes are affected e.g.:
> 
>    MusicXML                              expected LP     wrong LP  
>   --------------------------------------------------------------------------
>    eighth note with 1 stroke         c8:16               c8:8   
>    eighth note with 2 strokes       c8:32               c8:16  
>    ...                                             
>    sixteenth note with 1 stroke    c16:32             c16:8  
>    sixteenth note with 2 strokes  c16:64             c16:16 
>    ...     
> 
> 
> I cooked up some files to illustrate the expected output and the bug:
> 
> * 
> https://github.com/Philomelos/PUMTS/blob/master/partwise/elements/tremolo/tremolo.xml
>  (MusicXML supports up to 8 tremolo marks)
> * 
> https://github.com/Philomelos/PUMTS/blob/master/partwise/elements/tremolo/tremolo--expected.ly
> * 
> https://github.com/Philomelos/PUMTS/blob/master/partwise/elements/tremolo/tremolo--expected.svg
> * 
> https://github.com/Philomelos/PUMTS/blob/master/partwise/elements/tremolo/tremolo_xml--musicxml2ly-2.19.15.ly
>  (I had to comment out some lines)
> * 
> https://github.com/Philomelos/PUMTS/blob/master/partwise/elements/tremolo/tremolo_xml--musicxml2ly-2.19.15.ly--lilypond-2.19.15.svg
> 
> 
> hth
> patrick
>>
>> http://www.musicxml.com/UserManuals/MusicXML/Content/EL-MusicXML-tremolo.htm
>> says: "Note that the number of attached beams is not included in this value,
>> but is represented separately using the beam element.”
>>
>> Tested with version 2.18.2 and 2.19.19

Thanks, this is now on the issue tracker:

https://code.google.com/p/lilypond/issues/detail?id=4390

James