Wow!! I'm impressed. Keep up the good work!
I want to know how they did that .
Sounds great. I guess this is just more sophisticated version or duophonic stereo of the 1960's. Nowadays you can, i guess, separate different frequences better and then place them where you want in the stereo picture. Couple of years ago they released a stereo mix of the Beach Boys' Good vibrations, even though no multitracks or stereo recording of that track existed.