I too have been looking for better quality sound than wavetable. I have Soundfont and the Sfz player. I downloaded Midi Yoke, unzipped it, and it said that driver(I guess)was being sent somewhere in the system, and that left me with a readme.

How do I get Composer to recognize a Midiyoke port to send to SFZ(containing Sounfont) ? I initialized Composer hoping to find a new port. That didn't get it.

I am more of a musician than geek, and this is a bit confusing to me.