Indeed I'm not you old Jive Turkey! I think it's a term Ian might use.

What I am trying to understand, and forgive me here but my knowledge is somewhat limited, is that ,given the presence of a beat when playing two disparate frequencies, and the perception for the listener of that beat, is there any way of identifying the frequency of the beat by using say a spectral analyser, or are we just reliant on a mathamatical process to be able to define the perceived pitch?

Thanks