If you have the GM-4 gm library or Hypersonic 2, it responds great to program change messages. Then you have to switch on GM mode, and only the GM patches are available, switch off GM mode and all patches are available, but then you need to assign program changes to the correct banks. But it works great, but the great thing is that you can edit the patches while playing back a style, then save that to a bank file, then switch off program change messages from your midi software, and now you can load your "band" setups the way you want. You can also setup your own GM bank using the patches you like best, and use that as the GM bank recieveing program changes. The possibilites are endles. The dongle actually works good for me, not had any problems yet. I've found that running the stand alone version of Hypersonic gives me much better performance than using a host application, latency is as good as zero, and it switches lightning fast. It's like having a Motif synth with arranger capabilites, it's great! The flexibility and ease of use, combined with great sounding sounds, that are in my opinion way ahead in some places from many of todays hardware units makes HyperSonic 2 worth every penny!

Doc-Z