Re: beaming regression

[Carl Sorensen]

On 10/12/09 1:41 PM, "Andrew Hawryluk" <address@hidden> wrote:

> Attached is the output of LilyPond 2.7, which was benchmarked as a
> near match against Baerenreiter BA320. The current beam positions do
> not match: the stems are now shorter, on average. (The third measure
> also has a beaming error of another kind: the first two beats should
> be grouped separately from each other.)

I cannot see where the stems are shorter on average.  I can see that the
beamlets are a little bit shorter, but every stem I check between the two
appears to me to be the same length (except the difference caused by the
beaming error).

The beaming error in measure 3 is the result of a known bug; the autobeamer
can't look ahead to see the 1/16 notes on the second beat and end the beam
after the first beat.

See issue 638

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

> 
> \relative c {
>   \clef "bass"
>   \key d \minor
>   \time 3/4
>   \mergeDifferentlyDottedOn
>   << {\slurDashed d8.-\flageolet( e16) e4.-\trill( d16 e)}
>      \\ {d4_2 a2}
>>> 
>   \slurDashed
>   <f' a, d,>4. e8( d c)
>   \slurSolid
>   bes g' f e16( f g_1 a_2 bes_3 d,_2)
>   \slurDashed
>   cis4.-\trill b8_3( a g)
>   << {\slurDashed d'8.( e16) e4.-\trill( d16 e)}
>      \\ {<f, a>4 a2}
>>> 
> }
> 
> Andrew