How to change port number for Subsonic?

General Discussion
1

Is there a way to change the port number that Subsonic uses when running on DietPi?
If yes, how?

2

Advanced configuration
To change the port number, Java memory settings or other startup parameters, edit the SUBSONIC_ARGS variable in /etc/default/subsonic. To restart Subsonic, do sudo service subsonic restart


SUBSONIC_ARGS="--port=1234"