Why Don’t People Stutter When They Sing?
For the fluent speaker, speaking and singing are created in a similar way from the same exact anatomical structures. The same signals to vibrate the same vocal folds are subconsciously sent from the brain. This creates intonation, the speech equivalent to melody. Intonation becomes speech sounds as the mouth moves automatically. This can happen because fluent speakers are not aware of the words they are saying.
For people who stutter speaking and singing are done differently. When speaking, the focus of attention for people who stutter is the words. In one way or another, they are concerned with saying words and “getting them out”. Intonation takes a backseat as the brain tries to control word formation. Subconsciously, the brain is busy sending signals to lips, tongue, jaw, etc. Instead of the mouth automatically shaping the voice (intonation) into speech sounds, the voice becomes a vehicle for pushing out already formed speech sounds and words.
For people who stutter the processes of speaking and singing are done very differently. For people who speak fluently, they are almost identical.