I heard the words excellent apogee duet coming from my son when he was talking with his daddy. I was not sure what it was or what it meant. It turns out it has something to do with an interface to a computer and a guitar. I think someday I will look it up, but not today. My husband and our daddy keep talking everything and anything, they are just like friends. I am glad that they can understand each other, maybe because they love each other.