Lee,
What you did is exactly what I was thinking of doing...however, I want to separate the music and voice from the Music Alphabet files and if we make it a flash animation it won't have that choppy feel to it. LR does the same thing. I have coerced my 16 year old for this.....he wants me to help him purchase a car. So, he has a LONG list of work I want to done.
I was thinking, what if we made it so that all the notes we visible and as each note is played it changes color. I think it might give th ekids a better picture of how it all works. Kind of like think 100 times and play once.