If you use own a software synthesis program like Propellerhead's Reason, or plug-in synthesizers like Native Instruments' Pro-52 in Steinberg's Cubase or other sequencer/DAW, you can use a midi router like Midi Yoke to route the midi output of Sounder into the synth.
If you press "record" in that program's sequencer, you can save the music you've created into a retrievable MIDI sequence, which you could edit or manipulate from there.
If you'd like a step-by-step tutorial on this, email us here.