I love pushing the envelope and being challenged at the same time when mixing. This is one of the reasons I mix ITB (In the Box). Its almost like starting with a clean palate and using any type of paint and brushes you want. One of the engineers that made me believe its possible is Tchad Blake. I have studied most of his mixes especially since he went completely ITB and I have to say, its mind-blowing. Anyways, I came across this documentary after some digging. Binaural Recording is something Tchad has been advocating for years. Watch for yourself and if you haven't gotten into his work, do yourself a favor and start listening. Happy mixing!