Disclaimer: not at a Lily-equipped PC at the moment.
Isn't that talking about apples and oranges? IIUC, the tweak as written in the
snippet does not work with the patch because `__` is not translated to an
ExtenderEvent anymore, but to `SCM_UNSPECIFIED`. That's expected, since we
purged `__` from the syntax. If an `\once \override LyricExtender.stencil =
...` were used instead of `\tweak`, everything should be fine, right?
So, yes, the patchset introduces an error for that snippet, but it should be
possible to work around with a different way to "install" the new stencil.
I'm not sure if it's a good idea to keep `__` around just to facilitate the
tweak notation. After all, there's only going to be one extender active - in
chords, we need tweak to access individual elements, but this is not the case
for extenders...
Also, this snippet does not really care whether ExtenderEvents exist - it
changes the **LyricExtender** stencil, and only uses the ExtenderEvent creation
routine to install the tweak (and save the user from typing an additional `__`
which will no longer be needed). So I do not really see how this relates to the
original point: keep or purge ExtenderEvents.
That being said, I'm nevertheless surprised how `\displayLilyMusic` manages to
emit an `__` there...
---
** [issues:#4509] Enhancement: automatically engrave lyric extenders**
**Status:** Started
**Created:** Sat Jul 18, 2015 03:23 AM UTC by Anonymous
**Last Updated:** Thu Jan 26, 2017 07:38 AM UTC
**Owner:** Alexander Kobel
**Attachments:**
-
[Selection_005.png](https://sourceforge.net/p/testlilyissues/issues/4509/attachment/Selection_005.png)
(263.8 kB; image/png)
*Originally created by:* *anonymous
*Originally created by:*
[[email protected]](http://code.google.com/u/116549170756205086316/)
Actually, this is a content vs. presentation issue. The current approach has
lyric extenders ‘hardcoded’ within the lyricmode input, whereas often it
depends on layout whether I want an extender printed or not:
– In tight horizontal spacing, we might not need an extender, but when spacing
is stretched, it might become necessary. This can come through different
\(page/line\) breaking, parallel contexts present only in some editions \(part
vs. score\), Completion\_heads\_engraver \(mensural without
barlines/transcription with barlines\).
– Long syllables might not need an extender, where short syllables do.
– Often, all voices share the same text, but have extenders in different
places. If extenders need not be given explicitly, the lyricmode input code can
be reused much easier.
After all, the extenders don’t add any additional meaning, but only serve to
improve legibility in such cases where they do.
This would require:
– Recognising the end of a word by absence of a hyphen.
– Comparing printed length of the melisma notes vs. the syllable, likely after
line breaking. After all, extenders will never influence horizontal spacing.
They might, however, affect vertical spacing. \(unless we chose to omit \(or
shift\) the extender in that case?\)
– Personally, I think very short extenders shouldn’t be printed. There should
be some kind of threshold.
It’s also one of the usecases where a proper representation of a ‘lyric word’
would be helpful, along with [issue 2458](#2458).
Possibly related:
[issue 4098](#4098)
[Version
2.12](http://lilypond.org/doc/v2.12/Documentation/user/lilypond/Aligning-lyrics-to-a-melody#Multiple-notes-to-one-syllable)
had this listed as a Known issue.
---
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