Bug? Some measure Repeats ignored first time through bar repeat?

• May 26, 2019 - 02:12

Hi Folks,
The first time through the four bar repeat (13 to 16), the last two measure repeats (bar 15 and 16) of the Cabasa and Triangle are ignored. I tried restarting the program, the audio driver and reinserting the measure repeats--still no luck.

My system: OS: Windows 10 (10.0), Arch.: x86_64, MuseScore version (64-bit):, revision: 8b1a7dc

Attachment Size
Xote_Swing_arrangement.mscz 22.16 KB


Also Surdo 1 in that part, the second groove repeat (13 to 16), is much more quiet than in then in the first Groove repeat (Bar 5 to 9) part? I've checked the inspector and the velocity is set to default? It has something to do with previous forte? But, the other instruments are not effected, at least to my ears?

I have looked at this. I reentered the measures that won't play right and they still don't play. I also looked around for some misplaced item that could affect the playback and didn't find anything obvious. I did confirm measure 14 plays fine and it's identical to the two that don't.

In reply to by Ziya Mete Demircan

Thanks for looking into this. This score was completely created in Musescore 3.1. I did use a custom instrument.xml (see attachment) for the instruments in the score, in which I redefine some of the articulations. However, replacing the non-playing instruments with the same instrument.xml, but without the articulations redfined, did not fix the issue of repeats not playing first time through. On a side note, removing the dynamics (piano and forte) in the previous measure to the 4-bar repeat does help restore the volume/velocity of Surdo 2 (second unrelated issue) but had no effect on the repeats. Also, reentering the notes of the Cabasa, before the measure repeats, did not fix the issue. Oddly, the first four-bar repeat of the Groove in the score is an exact duplicate and it works fine. I double check this copying and pasting the second four-bar Groove repeat into the first 4-bar Groove repeat, replacing it completely. There is something about the positioning of the second Groove 4-bar repeat that is different.


In reply to by Sambaji

The measure repeats not playing first time in the 4-bar Groove repeat has something to do with the bar 15 position of the 4-bar Groove that is the issue. Removing measures 9 to 13 of Break 1 does resolve the issue. Reinserting 4 new measures (9 to 13), restoring the 4-bar Groove to the bar 15 position, returns the issue.

In reply to by Sambaji

When you say restoring the 4-bar Groove to the bar 15 position, are you deleting the measures with ctrl+delete then inserting new measures using insert (or ctrl+insert) then reentering the notes by hand, or are you copy delete insert and paste the notes?

If this were imported from an earlier version I would blame it on that. This is made from scratch in 3.1 and is a problem that needs to be understood and fixed.

In reply to by mike320

I meant restoring the Groove to the Bar 13 position by deleting and reinserting measures 9 to 12 with ctrl+delete and then "Insert Measures" under the Add menu. Although the score was created by scratch, I copied some of the notes from another score. To simplify the diagnosis, I deleted as many elements possible where still retaining the issue--for example, removing all but the cabasa instrument and the first Groove repeat. And yes, the problem persists. See single instrument version of the score. I was mistaken about Bar 13 being relevant. At Bar 9, the problem persists. Keep in mind that the triangle was also having the same issue so it's not instrument specific.

In reply to by Sambaji

I've narrowed the issue down even more. If I delete the first measure, the problem goes away. If I delete any item in the first measure, the problem persists.

I don't see anything in the .mscx file that I would be deleting with the first measure that I can't delete individually except the time signature. As a test I created a 4/8 time signature (to keep measures in tact), inserted that and the problem persisted.

In reply to by Sambaji

What's particularly odd is that measure repeat in bar 10 is played, but the repeats in bars 11 and 12 are not first time through. Looking at the musicxml (in the simplified score), the core code for bar 10 is essentially the same for bars 11 and 12? The issue persist even after removing the ending barline repeat.

EDIT: As Ziya pointed out the repeats are not included in the musicxml. The repeats are missing in the reimported musicxml version. Yet they are present in the mscx file.

In reply to by Sambaji

There is something, seemingly unrelated, in the score causing the problem. On many occasion @Cadiz1 has found these items. His score diagnostic skills seem magical at times. I've seen little of him in the past week or so, perhaps he can look at the score or possibly a programmer can look at the score and see what variables are changing during playback each time and find the cause of it.

In reply to by Sambaji

The failure to export the measure rests is a seperate issue (at first glance) since in measure 10 the measure repeat does not export either, but does play back properly in both versions. The musicxml export is also not a regression since 3.0.5 doesn't export it either. I'll file an issue against that also.

In reply to by Marc Sabatella

Between Moe, Larry and Curly here, we couldn't find the cause in the .mscz file so I decided it had to be an obscure problem in the program. Since you can't recreate it from scratch, I would say this supports my theory that the problem will probably not be common. I know I'm not telling you anything you don't know, but it will likely drive people crazy when it's found again until it is fixed. I hope it's fixed before the final 3.1, but I would say at this point it shouldn't prevent its release.

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