Confused review – Binaural Beats Generator + Review

How do you know the proportions of the hz. For the left ear-register200 hz The right ear registers 210. Giving a Binaural beat of 10 hz. How do you effectively choose your ratios And duration if changing ratios in an individual session, the segue-way I am giving this lower score due to the fact that it needs to provide more detail
Review by Cracker White Bread on Binaural Beats Generator +.