My name is jayson. I'm 17 and I live in charlston, Sc. I'm a very gifted baritone who loves to sing. I have two friends. One is a tenor and another is a soprano who can also sing alto. They are very good at harmony. When we sing they instantly break into harmony. I try to make it three parts but I always wind up either going off key, changing key, or singing what the tenor sings only an octave lower. They have to feed me my note...How can learn I to sing harmony so that we can sing three parts without one of us sounding off key? Any tips would be greatly apprecaited.