Our Song Specific Patch sounds are not mapped to the sections in Sunday Keys, rather their volumes are all mapped to Section 5 (to the right of the song patch list). This allows you to quickly set the entire patch volume as a whole.
Our Song Specific Patches work generally by being mapped to the mod wheel. There are a variety of things mapped there (volumes, filters, fades, etc.,) so that you can easily switch between sections of the song by just using the mod wheel. The relative volume levels are set as well, so that things are balanced specifically for the song patch.
If you need help on how to play the patch, check out the free demo and full length tutorial on that song's web page.
