There seems to be a problem with Rosegarden being disconnected from Jack
at various times, for no apparent reason as far as I can see. When this
happens, Jack itself appears to be still running, but when I restart
Rosegarden, it cannot connect to Jack. So I have to stop Fluidsynth,
restart Jack, start Fluidsynth, then restart Rosegarden.
This happens even when I am doing nothing more than looking at the
segment or score editor: not even playing the score.