wrong beaming of dotted 8th followed by 8ths

[luis jure]

> I'm not top posting.

%{
  when preceded by a 16th rest, a dotted eight is beamed
  to the following eights.
  this does not happen with a 16th note instead of a rest
}%

\version "2.13.5"  % also in 2.13.4

\paper{ ragged-right=##t }
\relative c' {
  % this shows the default beaming and how it should be beamed
  r16 c8. c8 c r16 c8. c8[ c] |
}





_______________________________________________
bug-lilypond mailing list
bug-lilypond@...
http://lists.gnu.org/mailman/listinfo/bug-lilypond

[Valentin Villenave]

On Sat, Oct 3, 2009 at 12:41 AM, luis jure <ljc@...> wrote:
>
>> I'm not top posting.

Hi Luis, sorry for the delay,

>  % this shows the default beaming and how it should be beamed
>  r16 c8. c8 c r16 c8. c8[ c] |

I'm not sure what to do. The first half of the measure does look ugly
indeed (see attached), but I can't decide whether it's a bug or not.
Trevor, what would you do? (I'm asking you because beaming is kind of
your speciality now, isn't it? ;-)

Regards,
Valentin


_______________________________________________
bug-lilypond mailing list
bug-lilypond@...
http://lists.gnu.org/mailman/listinfo/bug-lilypond

[Trevor Daniels]

Valentin Villenave wrote Thursday, October 29, 2009 10:32 AM
>

> On Sat, Oct 3, 2009 at 12:41 AM, luis jure <ljc@...>
> wrote:
>
> Hi Luis, sorry for the delay,
>
>> % this shows the default beaming and how it should be beamed
>> r16 c8. c8 c r16 c8. c8[ c] |
>
> I'm not sure what to do. The first half of the measure does look
> ugly
> indeed (see attached), but I can't decide whether it's a bug or
> not.
> Trevor, what would you do? (I'm asking you because beaming is kind
> of
> your speciality now, isn't it? ;-)

Not really; Carl developed all the new beaming code.  But if you
really want my opinion I believe this should be classed as an
enhancement, namely to take rests into account when determining
the shortest note in the beaming interval.  It should be a
switchable
option to preserve the current behaviour and to accommodate both
preferences, as I don't believe there is a generally accepted rule
here.

Bug 638 is related, as solutions to that and this require a
different
approach to beaming - one which assesses the duration of notes
(and rests) within a whole bar before selecting the most appropriate
beaming for that bar.

> Valentin
Trevor




_______________________________________________
bug-lilypond mailing list
bug-lilypond@...
http://lists.gnu.org/mailman/listinfo/bug-lilypond

[luis jure]

el 2009-10-29 a las 11:32 Valentin Villenave escribió:
 
> I'm not sure what to do. The first half of the measure does look ugly
> indeed (see attached), but I can't decide whether it's a bug or not.

in my opinion this is definitely a bug, and related to issue 638, which
has been open for some time now:

http://code.google.com/p/lilypond/issues/detail?id=638

i thought there was an agreement that, by default, 8th notes should be
beamed in half notes when only values of 8ths are involved (notes or
silence). that is, four 8th notes, or three 8th notes preceded or
followed by a silence. according to that, the present output is not
correct.


thanks for your attention. best,


lj




_______________________________________________
bug-lilypond mailing list
bug-lilypond@...
http://lists.gnu.org/mailman/listinfo/bug-lilypond

[Valentin Villenave]

On Sat, Oct 31, 2009 at 12:53 PM, luis jure <ljc@...> wrote:
> in my opinion this is definitely a bug, and related to issue 638, which
> has been open for some time now:

OK, added as http://code.google.com/p/lilypond/issues/detail?id=898

Cheers,
Valentin


_______________________________________________
bug-lilypond mailing list
bug-lilypond@...
http://lists.gnu.org/mailman/listinfo/bug-lilypond