I was watching a young female singer who had a stuttering problem .I hope this may help her . I was a stutterer till I was about 10 years old & was fortunate to become a part of a program within the NYC school system to work with us. Their theory was that stuttering was the result of arythmic breathing & since singing required rythmic breathing kit made sense to train us by singing all types of texts for six months .I am now 86 & have never stuttered again . I hope it works for you . God bless Bob Hagan