I'm wondering if girls voices change during puberty/adolescence. My daughter is 13 1/2. Her voice is more classical than musical theater. She started voice lessons at age 12, 30 min a week. Her voice teacher had told us that during puberty, girls singing voices may lower a little, but that they often come back a little higher when the girl is a bit older. Well, out of the blue, D's voice seems to have shifted a bit lower. The high notes that used to be easy for her seem to be gone and she says the ones that she can hit sound "airy." For example, she used to be able to sing an "A" (the one that's almost two octaves above middle C, sorry, I don't know the exact terminology), but not anymore. The F's and G's are now difficult. She was easily doing the G's about 6 weeks ago-we had videotaped her for an audition. So, those of you who are singers or parents of female singers, any experience with something like this?