How to get Rosegarden to have sound?

Hello,

How do I get Rosegarden to have sound? I have Jack, Qtjackctl, rosegarden, and qsynth installed. I’ve tried starting jack, then qsynth and then rosegarden but it doesn’t work. What am I doing wrong?

Oh and I added a soundfont to qsynth.

I got it working! I had to get fluidsynth-dssi.