Just days after I posted How the Power of Music Nurtures Bilingual Ability—in which I proposed that regularly playing background music can have a beneficial impact on a child’s language development —I experienced clear proof of this with my own kids. They were in our “play room,” the space with their toys and games—and our CD player—when I slipped past them to play another CD. This time I chose a Broadway musical called “Pippin,” which they had heard several times