Comment 15 for bug 347307

David I can confirm playback of the line below produces distortion free time consistant output with no interference from screen scrolling etc.

dave@dave-laptop:~$ fluidsynth ~/Guitar/Soundfonts/32MbGMStereo.sf2 ~/snooker.mid -a alsa -l -o audio.period-size=1024

I have installed Jack and used the newer version of fluidsynth with Tuxguitar using tuxguitar-fluidsynth.
It plays distortion free until there is screen movement or a cursor shift, I suspect if I could change the default audio.period-size=1024 it would play without glitches.

Thanks for your help will install Karmic and try soon.