[kwgt] Audio visualizer komponent and/or frequency spectrum range formula for widgets

I know KWLP has an audio visualizer, but it's tricky to edit It's position inside the app all the time.

So, I would like to see it's possible to have an audio visualizer komponent, or, more importantly for me at the moment, a formula like "$fr(min_value,max_value,min_frequency,max_frequency)$" for the current music that is playing so I can build my own widget visualizer by using the formula to resize pre-existing komponents like shapes or maybe update the value for a progress bar.