" Have you ever paid notice to the full sound range of your voice? If you have ever been in a chorus or a singing group, you already know that they will separate the group based on each singer’s pitch and assign their roles accordingly. While my speaking voice has a soprano pitch, my singing voice is a lower alto. "

― Susan C. Young , The Art of Communication: 8 Ways to Confirm Clarity & Understanding for Positive Impact(The Art of First Impressions for Positive Impact, #5)