Thank for your help.
I thought that "Song System Exclusive Message List" was for sequencing. Didn't think it would change the style during live playing.

I will have to give it a try (system not set up right now).

As for your idea with the registrations, I thought of that, but I use registrations for rotating sounds. I use a footswitch to cycle throught the registrations and freeze is on, so that the style doesn't change. I don't want to give up my registrations for style selections.

Thanks again for your research.