Thank you for the answer and the good news!
I am very oldschool and i like (changeable) presets for sound.
I am not so much into adjusting parametric eqs without having a basis.
Maybe you know old receiver sets: They had switches on the front panel named JAZZ, CLASSICAL, VOICE and so on.
You could choose one according to your taste and vary it (at best) with treble and bass, seperately.
I liked that very much and it should be very easy to implement if there was an eq implementation already (which is there, from you?).
And there was another feature, when stereo came up, and rock music was recorded in “intense stereo” (first Beatles albums!).
Drums left, voice centered, lead guitar right or the like. Ugly and not natural but a strong proof that your equipment is Stereo!
There once was that magic knob where i am missing the English word: Panoramaregler. You had a possibility to mix the stereo channels
from fairly separated to mono by feeding left channel into right and vice versa using some resistors and a rheostat or pot.
I loved it. It sometimes is very relaxing listening to mono sound.
Just my 2-cents.