I need JACK because I include audio files in my sequences. I can even use it on a 450 megahertz machine. I've learned a lot about using it in the past few years. I use Rosegarden, and it's easiest to record audio tracks using Rosegarden.
Okay. I might try it again if I need to include audio files in my sequences. How do you manage to get audio files in Rosegarden though? I didn't think that was possible?
(For instance, say I wanted to include a recording in an otherwise-MIDI song, can you insert the recording into Rosegarden so it would be played at the appropriate time?)
Just for my benefit, have you tried FluidSynth with ALSA/Pulse on Ubuntu 11.10? If it works, then I should be able to upgrade, since I don't need JACK.