i am very interested in your empathetic equalisation method. I tried it and could often get good results. However, i have one simple suggestion which maybe would make it easier.
This is from the tutorial :
In general you should shape the spectrum (peak and average) so that the resultant spectrum flows through the original (particularly when viewed in 1/3 octave spectrum)
So i think it would be great if you could see the original 1/3 octave spectrum while doing equalisation in 1/12 octave resolution. Just like the picture in the tutorial.
Kind regards from Germany, and keep up the great work
Matze