I think what you referring is about "Signal Processing and Signal Routing" for music purposes. I believe you are already using them. These are tools such as Pro Tools, Ableton, Reason and etc. For guitar Processing, I used to use Line 6 antfarm, Digitech fed in a tubalizer to have that illusion of tube amp directly plugged in a mixer. You did study these things at school and I know you use Pro tools heavily.
Ah, you are looking for new techniques that has not been done.
Sorry, I am out of commission for 10 years now due to spine ailment.