Thanks for adding the tracker item.
The discussion at
https://lists.gnu.org/archive/html/bug-lilypond/2016-02/msg00000.html contains
further considerations about the proper distance. Maybe the to-be-extended
length should be modified and made slightly smaller in some cases. However,
currently it seems impossible to achieve the best results, even with manual
overrides. It seems the beam quanting code prevents several constellations,
among them the desired one.
In general I'd summarize:
The distance of a *semiquaver* beam is usually correct by default. But with a
third beam (and more) the inner beam should be identical to the semiquaver, and
additional beams have to be added to the outside (I haven't inspected the code
yet, but it seems this should be the way to go).
*Maybe* I will work on that if I should successfully finish the beaming pattern
rewrite.
---
** [issues:#4765] Multiple beams too close to notehead**
**Status:** New
**Created:** Fri Feb 05, 2016 02:26 PM UTC by Palmer Ralph
**Last Updated:** Fri Feb 05, 2016 02:26 PM UTC
**Owner:** nobody
**Attachments:**
-
[beams-too-close.ly](https://sourceforge.net/p/testlilyissues/issues/4765/attachment/beams-too-close.ly)
(4.2 kB; text/lilypond-source)
-
[beams-too-close.pdf](https://sourceforge.net/p/testlilyissues/issues/4765/attachment/beams-too-close.pdf)
(37.1 kB; application/pdf)
Urs Liska wrote :
I've always found that beams with three or more beams look too tight,
but now reading Gould, p. 19 confirms that, and I consider this a
type-ugly bug:
According to Gould outer beams starting with the third should move away
from the notehead, and "beams should never be closer to the notehead
than the correct position of the semiquaver beam (2 1/2 spaces)".
Attached you'll find examples for three and four beams, and I expect
this to continue with more beams. I have colored the ones too close in
red and adjusted them (blue) to Gould's minimum distance.
It seems:
* when the notehead is on a ledger line the rule of one clear staff
space in the staff is correctly applied
* when the notehead falls on one of the four outer staff lines the
stem length is correct
* when the notehead falls on the center line the stem has to be
extended by 1/2 ss
* when the notehead falls on any staff space (including the ones
directly outside the staff) the stem has to be extended by 1 ss
---
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