I have YPG-535 and would like to be able to switch between 4 different melody voices while playing auto-accompaniment style. I can save in regist memory 1 main and split voice and in regist memory 2 another main and split voice and easily toggle between them. However in the auto-accompaniment mode, which is needed to play styles, when I play melody with the split voices it interferes with the chords. When I change the voice split point the auto-accompaniment split point also changes.

Can I play a split voice and auto-accompaniment at the same time? Can I set voice split point aside from the auto-accompaniment split point so keyboard has 3 zones: accompaniment, split voice and main voice?

Thanks for looking into this.