I'm quite interested in real time pitch tracking. I have used mcleod pitch method, Yin and other methods to perform real time pitch tracking for a monophonic audio track.
I know that Polyphonic pitch detection is at a whole different level and I want to know where to start. If the experts(masters) could point me at the right direction, It would be greatly appreciated. Papers, books, Topics or any suggestions that you could give me would be of great help.