Split Measure breaks slurs and ties
Priority
P1 - High
Type
Functional
Frequency
Once
Severity
S2 - Critical
Reproducibility
Always
Status
closed
Regression
Yes
Workaround
Yes
Project
V2.0.2 on Windows 7 (also tested with nightly build 2016/02/01). In the example, I wish to split a measure at the dashed bar. I select the highlighted F and go to Edit > Measure > Split Measure. The result is shown in the second system: The slur and tie before the split are lost; the tie after the split is preserved, but the slur is garbled. I rate this no more than a nuisance.
This looks similar to https://musescore.org/en/node/23111, which was patched two years ago.
EDIT: After reading comments on 23111, I did a bit more testing. Split Measure can also garble hairpins that begin in the measure being split.
| Attachment | Size |
|---|---|
| zbug-split-measure.png | 15.41 KB |
Fix version
3.5.0
Comments
I haven't tried this, but what do you think should be expected behaviour when split a measure though middle of a hairpin? Should it break into two hairpins? Does that go for all line elements?
Hairpins are anchored to particular starting and ending notes, not to measures. Since Split Measure doesn't move notes about—in fact, tries to preserve notes exactly—I'd expect the hairpins to remain anchored as they were. So a hairpin would remain single, anchored to the same starting and ending notes. I'd expect similar behavior for most spanning elements.
I've attached a more complex example. Note that the tied F in the treble clef is preserved, and the whole-note G in the bass clef is changed to two tied half notes—exactly preserving original note durations. But ties and slurs beginning before the split measure are lost, and a slur beginning in the split measure is doubled. Each hairpin is also doubled, one retaining the positioning offsets from the original, the other reset.
WIll be part of the solution for #295207: Mscz file corrupted after splitting a measure.
Surely not a Blocker, alone the age of this issue speaks volumes... #295207: Mscz file corrupted after splitting a measure even mentions a workaround and lost slurs and ties should be easy to reinstate
In reply to Surely not a Blocker, alone… by Jojo-Schmitz
Certainly not a blocker, I just will spend a few hours to see I can get this right too. As a matter of fact, all what's left are a few extra hairpins created.
https://github.com/musescore/MuseScore/pull/6144
Fixed in branch 3.x, commit 591b023139
_Fix #97376 - Split Measure breaks slurs and ties
Setting the SPANNER_TICK/SPANNER_TICKS properties for Spanners getting a new
start or end element adapted._
Fixed in branch 3.x, commit 6f4fd1b3c5
_Merge pull request #6144 from njvdberg/issue-97376-split-measure
Fix #97376 - Split Measure breaks slurs and ties_
Automatically closed -- issue fixed for 2 weeks with no activity.
now fixed in master too