I’m very late to the party, but I recently found the current version of MuseScore in stable channel is quite old and I wanted to give 3.x a try, so here is my feedback (I’m not an expert on MuseScore, I was just helping a friend who would like to use it):
I installed it on Ubuntu 18.04 using Ubuntu Software. I selected the beta channel from there (so the version I installed is 3.0.2) and once the installation was finished, I clicked on Permissions and activated everything (which, if I’m not mistaken, does the same as manually calling the
snap connect commands you gave above). I noticed later that the permissions were not kept in Ubuntu Software, but they seem to be activated nonetheless: my musescore snap has access to
alsa, cups-control, desktop, desktop-legacy, gsettings, home, network, network-bind, network-manager, opengl, pulseaudio, unity7, wayland, x11.
The application launches fine, I could follow the tour that introduces the different sections of MuseScore and create a new score.
I could also open an existing score (downloaded here), install a SoundFont file (downloaded here, then right-clicked it and selected MuseScore) and use it to play the score.
So far, so good!
I only noticed one little issue: I tried to print a PDF (File > Print… > Print to File (PDF)). I selected
/tmp/test.pdf for the output, but I was never able to find the file. I guess this is something to do with snaps, but the file is not present in neither
/home/myuser/snap/musescore/*. However, I can save the PDF file somewhere else (for instance in my
home directory) and it works fine.
Do you have any plan to release this version (or a newer one like the 3.0.5 released last month)? Thanks again for your work!
P.S.: do you host your
snapcraft.yamlrecipe somewhere? I’m curious to see how it’s made.