MuseScore

MuseScore is the world's leading free and open-source software for writing
music, with a user-friendly interface and immensely powerful features.
It is free to install on Windows, Mac, and Linux.

Some interfaces need to be connected manually:

 $ sudo snap connect musescore:cups-control

 $ sudo snap connect musescore:network-manager

 $ sudo snap connect musescore:alsa

 $ sudo snap connect musescore:removable-media

But most of the application functionality works without them.