Babies already know how to sing., A childs tone is naturally pure, free, and unforced., There is no manipulation, no added vibrato just sound., If vibrato is pushed onto the voice before the Vibrato is the slight oscillation of pitch produced when the vocal cords are balanced and relaxed, creating a warm and expressive sound. Developing a natural vibrato is a key aspect of vocal 3 Ways to Sing Vibrato wikiHow Vibrato What It REALLY Is, Why You Need It, and How to Get Some! One on One Coaching and Music Instruction Nadia Smelser Singing Lessons, LLC