The other day, I overheard a question that I feel obligated to answer.
"What voice should I sing to children in?"
A little background: I'm a bass. Not like a fish, like a low, loud, boomy bass singing voice. To top it off, my range isn't the greatest (hey, I'm a saxophonist). So most of what I sing is low. When I was studying for my bachelor's degree, a music therapists I studied under told me I needed to sing in a falsetto (What is falsetto?) voice when working with children. Her concern was that children could not match my low pitch.
While this is a legitimate concern, I always had to respectfully disagree that singing in this manner was necessary. For one, I was uncomfortable singing in this manner, both physically and cognitively. I felt it strained my voice, and I also felt a bit silly singing like that. Falsetto voice certainly has a time and place, but I felt that singing in this manner might be confusing and distracting to the clients I work with. Perhaps if I was Justin Timberlake I could pull it off, but it just wasn't me.
So I continued on with my bass singing. Over two years later, I've never had a problem with it! While the quality of the music is important in music therapy, it's not the end-all, be-all. The facilitation of therapy is far more important.
My advice to those wondering what voice to sing to children in would be this: Whatever voice is comfortable to you. High, low, loud, soft, out-of-tune, or anything in between.