On 8/10/10 2:52 AM, "Xavier Scheuer" <x.sche...@gmail.com> wrote:
> Hi Carl!
>
> First of all thank you for your formidable work on the new autobeaming,
> it seems really powerful and the ideas to configure it more "logical"
> (although I must confess, I'm still not totally used to all these
> changes)!
>
> I would just like to know if it is currently possible to define rules
> for subdivided beams? I think I heard about this in a discussion but I
> was not able to find it again.
>
> What I would like to do is (or seems, at least from a user point of
> view) quite easy.
> I'm really satisfied with current 4/4 beaming rules but I'd like to
> add one more "default" rule: I want 32th to be subdivided by 8th.
> So the equivalent of
>
> % Set beam sub-group length to an eighth note
> \set subdivideBeams = ##t
> \set baseMoment = #(ly:make-moment 1 8)
> \set beatStructure = #'(2 2 2 2)
> c32[ c c c c c c c]
>
> but "automatically", as default rule (i.e. within beamExceptions?).
>
> Because I do not want 16th (and longer notes) to be also subdivided by
> 8th, which is the case if I use the code above.
>
>
> I have seen in "scm/time-signature-settings.scm" the line:
>
> (subdivide . grouping-rules) (not yet implemented, reserved for future use)
>
> Is this what I'm looking for? And does this mean it is not implemented
> yet, but will be possible in a not-so-long-term future? ;-)
Yes, this is true. We currently do not have the capability of setting
multiple levels of subdivide; we only subdivide on the beat.
The exact mechanism of getting multiple levels of subdivision is not yet
finalized. We may use a subdivide grouping rule, or we may just use a
nested beatStructure.
As far as a time for its implementation, I'm not sure how long it will be.
I've looked into it, but I haven't yet got the architecture firmly in mind
for making it happen.
Thanks,
Carl
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