@jjss49 A very good point to make, and one that I missed. You have to be very careful and honest with yourself when critical listening. You must remain neutral in your mind and not swayed by emotion or mood. Choosing the right time for you to listen is essential, and more than one session, not to reinforce what you think you heard earlier, but to listen again with that same open mind. Also, all types of music.
@steakster nice analogy, that program looks interesting too, thanks.