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From: | Auto mailings of changes to Lily Issues via Testlilyissues-auto |
Subject: | [Lilypond-auto] [LilyIssues-auto] [testlilyissues:issues] #2575 Ambitus is incorrect in the case of semitone staves |
Date: | Sun, 30 Sep 2018 16:37:55 -0000 |
If I remember correctly, in the regtests or somewhere else a complete rewrite of the Ambitus_engraver in Scheme was done. It hasn't become the default because Scheme engravers could not be registered, documented and used identically to C++ engravers, making it a compatibility problem. Now this might still be a performance issue, but overall I think that now that registering Scheme engravers is equivalent to registering C++ engravers in all respect (and we do have a few already), it might be feasible to revisit the decision to move this into the Scheme realm for good since it makes it more accessible to tinkering.
[issues:#2575] Ambitus is incorrect in the case of semitone staves
Status: Started
Created: Wed May 30, 2012 01:31 AM UTC by Anonymous
Last Updated: Sun Sep 30, 2018 04:30 PM UTC
Owner: Malte Meyn
Originally created by: *anonymous
Originally created by: address@hidden
Barikavily reported here:
http://lists.gnu.org/archive/html/bug-lilypond/2012-05/msg00217.html
Original post:
-------------------------
> I'm not top posting.
% Ambitus is not correct in the case of:
% Manually defined clefs (here the example of the standard choral tenor clef)
% Semitone staves
\version "2.15.35"
\new Staff \with { \consists Ambitus_engraver } {
\set Staff.middleCPosition = #1
c' c''
}
\new Staff \with { \consists Ambitus_engraver } {
\set staffLineLayoutFunction = #ly:pitch-semitones
c' c''
}
--------------------------
I think the first example is expected behaviour but the second one is a new bug.
http://lilypond.org/doc/v2.15/Documentation/notation/displaying-pitches#ambitus
http://lilypond.org/doc/v2.15/Documentation/notation/displaying-pitches#clef
https://code.google.com/p/lilypond/issues/list?can=1&q=ambitus
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