Guest IBO shouted: CANNOT UNDERSTAND WHY SOME VOCALISTS HAVE DIFFICULTY WITH HARMONIES.THEY MUST HAVE A HEARING PROBLEM.

?? how does that follow - I can *HEAR* harmonies perfectly well. I can even (for an individual note) usually *SING* a member of the chord that is appropriate. What I cannot do is instinctively select harmononic notes consecutivly that blend individually and make sense in regards to the melody line. That isn't a hearing problem.