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From: | Auto mailings of changes to Lily Issues via Testlilyissues-auto |
Subject: | [Lilypond-auto] [LilyIssues-auto] [testlilyissues:issues] #5638 Improve Lilypond Automatic Slurs |
Date: | Sat, 14 Dec 2019 08:38:59 -0000 |
And here’s the main example from that introduction—compiled with v2.19.83:
\include "oll-core/package.ily" \loadModules snippets #'((notation-snippets shaping-bezier-curves shapeII)) \paper { ragged-right = ##t indent = 0 } SUp = \change Staff = "up" SDn = \change Staff = "down" \new PianoStaff << \new Staff = up \relative d { \clef G \key e \major \time 3/16 \voiceTwo \slurUp \SDn \times 2/3 { b32( g' b } \SUp \times 2/3 { d g e' } \times 2/3 { d b g') } | \SDn \times 2/3 { b,,,32( g' b } \SUp \times 2/3 { dis g e' } \times 2/3 { d b g') } | \newSpacingSection \override Score.SpacingSpanner #'common-shortest-duration = #(ly:make-moment 1 70) \SDn \times 2/3 { b,,,32( g' b } \SUp \times 2/3 { dis g e' } \times 2/3 { d b g') } } \new Staff = down { \clef F \key e \major \time 3/16 s16*9 } >>
\include "oll-core/package.ily" \loadModules snippets #'((notation-snippets shaping-bezier-curves shapeII)) \paper { ragged-right = ##t indent = 0 } SUp = \change Staff = "up" SDn = \change Staff = "down" \new PianoStaff << \new Staff = up \relative d { \clef G \key e \major \time 3/16 \voiceTwo \slurUp \shapeII #'((h)(p 55 0.5)(p 50 0.2)(h 0 1.5)) Slur \SDn \times 2/3 { b32( g' b } \SUp \times 2/3 { d g e' } \times 2/3 { d b g') } | \SDn \times 2/3 { b,,,32( g' b } \SUp \times 2/3 { dis g e' } \times 2/3 { d b g') } | \newSpacingSection \override Score.SpacingSpanner #'common-shortest-duration = #(ly:make-moment 1 70) \SDn \times 2/3 { b,,,32( g' b } \SUp \times 2/3 { dis g e' } \times 2/3 { d b g') } } \new Staff = down { \clef F \key e \major \time 3/16 s16*9 } >>
Attachments:
[issues:#5638] Improve Lilypond Automatic Slurs
Status: Accepted
Created: Sat Dec 14, 2019 02:47 AM UTC by Carl Sorensen
Last Updated: Sat Dec 14, 2019 08:32 AM UTC
Owner: Carl Sorensen
We currently need to do a fair amount of manual shaping of slurs. LilyPonsd is not intended to be a WYSIWYG software; it's supposed to be smart enough to make beautiful engraving decisions.
I hope to be able to either tweak default parameters of the slur scoring algorithm or add new parameters and defaults of the slur scoring algorithm to be able to do an improved job of automatic slur creation.
In order to do this, I'd like to collect snippets that show both a less-than-optimal automatic slur and and improved slur created by manually shaping the slur with \shape.
Please add comments to this ticket, and attach two snippets to each comment.
Thanks,
Carl
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