Re: Conditionally displaying stems in void notation

[Rodolfo Zitellini]

Yes, but I would not have correct crotchets - in this type of void
notation crotchets are written out as quavers, with connected stems
and all, but with a white notehead.
I think I can:
1) write out everything in 3/2 and then alter manually every note <=
than a quarter to transform it in an eight
2) Halve all the values of the original, writing it in 3/4, then
blanking out all the noteheads (with duration-log). In this case all
the quarters are displayed corretly - they effectively become eights
with white noteheads - but (obviously) all the whole notes in the
original now are written as minims. I then manually turn off their
stem to make them wholes again. This is because I am faking 3/2 using
3/4 (for the abovementioned eigths).
I can do this all manually, but it is quite tedious and long, and in
clutters my code (since I have to torn off stems almost every 2 notes)
- a way of turning off stems for all minims would be much more simple.

Thanks,
Rodolfo

On Sat, Sep 26, 2009 at 9:54 PM, Mats Bengtsson
<address@hidden> wrote:
> Isn't it simplest to first use the trick described in
> http://lsr.dsi.unimi.it/LSR/Item?id=305 to modify the duration of each note
> to the double, and then alter the note heads. This should give you correct
> stems.
>
>   /Mats
>
> Rodolfo Zitellini wrote:
>>
>> Hello list,
>> I am trying to typeset a piece in 3/2 void notation. I entered all the
>> music in 3/4 and altered the noteheads with #'duration-log = 1 to make
>> all notes white. This fakes 3/2 ok, but all notes bigger than a minim
>> (in 3/2) now have stem, which requires me to turn on and off all the
>> stems manually for every note that should not have one (i.e. all the
>> semibreves in 3/2).
>> I understand that in scheme it is possible to access the value of
>> duration-log to conditionally change the notehead stencil, it it
>> possible to do the same for the stem? I would just need to hide the
>> stem for all notes with value >= 2 (as entered in lilypond).
>> Regards
>> Rodolfo
>>
>>
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>>
>
>
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>        Mats Bengtsson
>        Signal Processing
>        School of Electrical Engineering
>        Royal Institute of Technology (KTH)
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