When playing Audya 4 with accordion I'm trying to use the "swell" feature by assigning it to one of my foot pedals. I'm thinking by pressing this pedal and setting the "swell" that the style accompanyment volume should be locked while allowing the volume pedal to control only the melody (right hand sounds). This does happen... until the chord is changed and then the style/accomanyment volume immediately jumps way up too loud. What do I need to do to correct this?

Gary