Music therapy with a child with autism

One of the most exciting thing is the first time you hear someone speak.  I was working with a young girl with autism in a music therapy group.  She can speak, but I had never heard speak.  Obviously this is not uncommon with people with autism.  I gave her plenty of opportunities to speak during the group, but she would never take it. 

At the end of the group I was singing the good bye song.  Out of the corner of my eye I see her mouthing the words.  Maybe not singing, but definately participating.  That was exciting.  When the group was over, the staff working with her encouraged her to say good bye to me.  Imagine my surprise and the suprise on the face of the staff member when she looked up at me and said, "Good bye Matthew."