[MU4 Issue] fp dynamic plays as f (no drop to p)

[MarcSabatella]

Describe the bug
The "fp" dynamic (and similar) does not play correctly - you get the "f" but not the change to "p" after.

To Reproduce
Steps to reproduce the behavior:

1. Score for trumpet
2. Add a whole note
3. Add an "fp" dynamic to it
4. Play
5. Hear error: volume is "f" throughout

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots

Platform information

• OS: Linux

Additional context
This is one issue I hadn't caught yet using my MuseScore Cafe theme score - https://musescore.com/user/2975/scores/6656770. That's the MuseScore 3 version; I'm working on a MuseScore 4 update to take advantage of things like the fall playback.

[MarcSabatella]

@Tantacrul not sure if this is on the radar, but it's a pretty serious playback regression, the biggest one affecting the "MuseScore Café" theme music

[Tantacrul]

Was this working in MS4 at any point?

[MarcSabatella]

I don't know for sure if it was ever working in MU4, but I tend to doubt it. I try this score in nightly builds on a pretty regular basis, but until recently there were enough other problems that this one could easily have escaped notice. The oldest build I have handy to test is the alpha 2 from early August, and I can confirm it was a problem then. Sorry for not catching it sooner, but dynamics had been a complete mess (mostly because of all the articulation weirdnesses), so it was very easy to miss.

FWIW, the three scores I'm always checking are this one ("MuseScore Café" theme), Reunion, and the one I sent you to hear with Muse Sounds (the "Music Master Class" theme). All three sounded pretty bad just a couple of months ago, but gradually almost everything has been fixed. At this point, Music Master Class is fine (at least with MS Basic and VST instruments - not sure if Muse Sounds will still show the odd portamento effect we heard a few weeks ago). Reunion is good except for pedal playback. And the MuseScore Café is good except for this "fp" issue plus falls/glissandi on tied notes - #12971. Well, also #13544 but that is understandably being put off, and I'm now working around that using "doits" which are close enough.

[cbjeukendrup]

@RomanPudashkin Are you working on this currently? I have an idea for a solution, based on 3.x, which I could have ready today.

[DmitryArefiev]

Fixed in #14788