Stand up straight like Julia, and you'll have more room for air. Voice starts with breathing, not the throat. "You start your sound down here," says S.J., a professional instructor at the conservatory, pointing at her student Julia's diaphragm. "That's how you get a fuller sound. The chords are just the middle guys." Sing from your throat and you'll end up losing your voice! Your mouth and head are just where sound resonates.