TOPIC: I'm new and very stupid, how do I save

I'm running Polyphone 2.3.1 on a 2022 MacBook with Monterey 12.4, but had this problem before on an older Mac as well. I have yet to successfully export anything from any version.

I simply cannot save any changes. If I make a new soundfont, the sample will appear to load and play fine, but when I import it to MuseScore to use it, no sound plays. It doesn't matter whether I use the save button, the "save as" dialog, or the "export" dialog. If I start with a working soundfont and edit it, the changes will not be reflected in the output, even if I save it to a separate file from the original. Any ideas what I might be doing wrong?

Looking at your attached file - you have not set up your instrument so it can play. if the instrument is not properly set up the it will not work as a preset.
csw900

Thanks, what needs to be set up and how do I do that?
And how might this apply to the already-working soundfont I tried to make a change to?

1 open your soundfont
2 rightclick your sample
3 Bind to.... your Instrument (Doorbell)
4 select your Instrument (Doorbell)
5 in the column of your sample set the Root key (NOT in the Global column, Global affects ALL samples)
6 select your Instrument (Doorbell) > Bind to... your Preset
7 Save
8 regards
9 P.S. at Instrument level set a few milliseconds Vol Env Attack and one second Vol Env Release

Finally worked, thank you!!

Any ideas why I couldn't change an already working soundfont? I was just trying to enable looping on a sample ("dog", which seems to have saved the loop range information I set, but still doesn't actually reflect in playback).

i dont see any settings in your soundfont exept a few Tuning (semitones) settings.
maybe because i use an old version (1.9) i cant see a thing in the newer versions, they are designed for telephone people and i have PC eyes and fingers.
look at this Doggy;
all Instruments should look like this, of course with different settings.
regards