Muse Sounds piano pedal sometimes doesn't reflect on playback

[cgpqci]

Issue type

Muse Sounds bug

Description with steps to reproduce

1. Open the following score: alkan_op33_les_quatre_ages.zip
2. Start playback
3. See errors (pedal playback on several measures either cuts off or doesn't reflect at all)

Supporting files, videos and screenshots

Here are all the examples I could find in the score:

measures 207, 215, 220-221:

https://github.com/user-attachments/assets/3ebc3913-f840-4cfa-acd0-439f5c96018e

measures 342-343:

https://github.com/user-attachments/assets/3207abea-f90e-4200-88d0-342ec79fe1e9

measure 358-359:

https://github.com/user-attachments/assets/7219bea9-c5fd-4bbf-b531-aa489cac92fd

measure 461:

https://github.com/user-attachments/assets/6ba00220-7fb3-4595-8075-452e7012d5af

measures 28-31:

https://github.com/user-attachments/assets/f224f6ec-a679-4d16-bb5a-f30dfd7d27f8

What is the latest version of MuseScore Studio where this issue is present?

MuseScore Studio version (64-bit): 4.4.2-242570931, revision: github-musescore-musescore-3130f97

Regression

Yes, this used to work in a previous version of MuseScore 4.x

Operating system

Windows 11

Additional context

• I'm unsure whether this might be related to #24425 or not, but I tried reproducing it and I can't.
• The pedal otherwise plays back with MS Basic, so this HAS to do with something in Muse Sounds.
• I tried on the latest nightly build; it's also present.

Checklist

• [X] This report follows the guidelines for reporting bugs and issues
• [X] I have verified that this issue has not been logged before, by searching the issue tracker for similar issues
• [X] I have attached all requested files and information to this report
• [X] I have attempted to identify the root problem as concisely as possible, and have used minimal reproducible examples where possible

[cgpqci]

I'm unsure whether this might be related to #24425 or not, but I tried reproducing it and I can't.

I think I've just done it; I've reproduced it in the attached score so maybe it's related(?) You can close this issue if you think this is a duplicate. Thanks!

https://github.com/user-attachments/assets/23db1d0d-5f40-4b63-935f-ade927397767

[bkunda]

I think it would help us if you could please upload a minimal example to show precisely what the problem is.

The problem with some of these excerpts is that they are very fast, and also sometimes very soft, so it is hard to understand exactly what you mean.

[cgpqci]

Hello! Sorry late reply. I've really done my best to recreate it with a new score, but no chance with it. I could only recreate it with the score I currently have right now.

Here's how it's supposed to sound like (made w/ a new score):

https://github.com/user-attachments/assets/9e1e945c-cdbc-429b-b534-ced094bd1b3f

And this is how it's playing back with my score (reuploading the file here w/ the example below):

https://github.com/user-attachments/assets/3b23fdc7-78cc-47ab-94c4-8bc623911ec2

It should be audible here now that the bass notes aren't sustaining to the next measure. The Windows screen recording might have not been taking the audio well; sorry about that. Anyhow, yeah, I still haven't found out what exactly is causing this to happen, but there's that.

[Ysabelle12]

24425

[Ysabelle12]

This issue has already been planned for a fix in MS 4.5, as mentioned above.

As far as I know, this is not a Muse Sounds issue but rather a MIDI/Playback issue. It affects both MIDI export and MuseScore playback.

The problem occurs when there are tempo changes in the previous bar, such as ritardando, accelerando, or manual tempo adjustments. The longer the piece, the more the pedal is affected by these changes. However, if you're working with shorter sections, like 5 measures, the pedal remains unaffected.

If your song is a constant bpm eg. 120 bpm the entire song, it doesn't break the pedal.

Edit: This is an MS3 regression. As they overhauled the playback in MS4, it broke a lot of things.