Re: Grace note beams and stems

[Stan Sanderson]

On May 28, 2004, at 3:12 AM, Mats Bengtsson wrote:

> > > > With respect to your second question, here is my solution to a  
> > > > similar problem:
> > > > \acciaccatura {\override Stem #'beamed-lengths = #'(3.6 4.2) af,16[  
> > > > af']}
> > > > The upper note was originally hidden in the beam; by adjusting the  
> > > > beamed-lengths, I was able to achieve the desired results.
> > > > Stan
> > >
> > >
> > > Thanks Stan.  That is working!  I'm still guessing  at values,  
> > > trying, adjusting, etc.
> > >
> > > Is there an explanation of the values anywhere?
> > >
> > > --  
> > > Jim Sabatke
> > I have looked an explanation without success. I've inferred that the  
> > numbers refer to successive barred stem lengths; the example in the  
> > manual has three stems and three numbers.
>
> Manual -> Stems -> Stem object leads you to
> http://lilypond.org/doc/v2.2/Documentation/user/out-www/lilypond- 
> internals/Stem.html
> which documents the property. When you only specify two numbers, the
> first one will apply to eighth notes and the second to 16th and  
> shorter.
>
>    /Mats

Mats-

The above documentation states:

> beamed-lengths (list):
> '(3.5 3.5 3.5 4.5 5.0)
>
> list of stem lengths given beam multiplicity .

As stated in my previous response, the values of (list) are the source  
of my confusion. I haven't found a clear explanation of how values of  
(list) are applied. The example (which, I assume, has default values)  
shows a list of five numbers. The example which I followed had a list  
of 3 values. Unfortunately, I can't recall whether it came from the  
manual or the archives.

I was surprised that an adjustment was required in the piece I was  
coding-

 \acciaccatura { af,16[ af'] }  <af c gf'>8\arpeggio buried the af' in  
the bar. I'm assuming it had something to do with the chord which  
followed. It is certainly an advantage that Lilypond allows  
adjustments!

Stan