They need to tell Charlie soon because it might pass out.
"He is a human pitch pipe. He can match pitch. We never needed a pitch pipe if Charlie was around. We'd say give us an A-flat and he would instantly knock it out,"
http://www.fox16.com/news/local/story/LR-Native-Advances-in-American-Idol-contest/NqhZWLGZA0a6KExdS9UxkA.cspx
