Mx4Px is the name of my studio, and it's pronounced "Mix For Pix." It means "Music for Pictures." My degree from Berklee is in Film Scoring, and over the years a lot of my focus has been on, well, music for pictures (here's the IMDb Page). So that's where the name comes from.
Although I can't speak for what may happen tomorrow (or five minutes from now), Mx4Px hasn't been "active" for a while. I've been pursuing new musical projects using my own name instead of "Mx4Px"; you can check out the new stuff at my composer page. Still, I think a lot of good work has been produced at Mx4Px over the years, and I wanted to make sure it stays available somewhere...might as well be here!