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|Subject:||[Lilypond-auto] [LilyIssues-auto] [testlilyissues:issues] Ticket 4509 discussion|
|Date:||Thu, 12 Jan 2017 18:02:03 +0000|
There is one reasonable argument for having __ ignored instead of invalid, namely backwards compatibility of the lyrics with older versions (in particular, to 2.18.x).
Not sufficient, as I see it. Backward compatibility in lilypond routinely requires convert-ly. Unless there is a more specific justification for making a semantic change without a syntactic change, the purposeless symbol should be removed from the language.
[issues:#4509] Enhancement: automatically engrave lyric extenders
Created: Sat Jul 18, 2015 03:23 AM UTC by Anonymous
Last Updated: Thu Jan 12, 2017 04:12 PM UTC
Owner: Alexander Kobel
Originally created by: *anonymous
Originally created by: address@hidden
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.
Version 2.12 had this listed as a Known issue.
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