Windows paint mockup.
Something like this, more in my opinion, puts the power of the plugin on display, rather than hiding it in pages. This mockup looks powerful, instead of just like a stock EQ plugin no different than any other:
edit
also, if you moved all the option buttons to be together in the header,
It leaves a lot of space for the Band Tabs to be quick controls, also giving the user an overview of some information all the time for each band:
edit
I forgot the keyboard takes up that space when enabled… so maybe the extra big tabs are lost if someone wants the keyboard enabled… or the devs can figure out some other workaround.