There is artistic placement of voices and instruments for desired effect. But even these recordings have a center sound stage to optimize artist or engineer choices.
Traditionally , a listener would adj balance on their sound system to center up the recording. WIIM Ultra control means less interruption in sound stage balance process. I suspect those who have great sound stage reproduction systems notice when the recorded stage is not centered. This is of course influenced by room acoustics and speaker placement.
Adding by album or song adjustment memory is an engineering challenge with multiple possibilities. WIIM could create something new and unique. Perhaps, one of your clever engineers could find a method to analyze the song and find what should be a left right balance for the recording. Then there would be no need to fine tune on a one by one basis and no need for memory.