= MuseScore
{c}
{wiki}
https://github.com/musescore/MuseScore
This software feels amazing. You can really start composing very quickly, lots of features, good keyboard shortcuts.
GPL, and there's a backing company that makes money with an online and mobile version of it.
Can export to:
* <MIDI>
* <PDF>
Ubuntu 20.04: sound preview worked, first hat that trailing Contra-like sound artifacts (like `spd-say`), but then it went away?
Feels like a lot of effort was put into usability, including keyboard shortcuts by default, seems like a powerful and easy to start using software to compose music!
Glissando: yes: https://musescore.org/en/handbook/arpeggios-and-glissandi