What should you do when your three-year-old Sesame-Street aficionado suddenly announces that he wants to study the violin? Or when your seven-year old informs you that he does not want the shiny new red bicycle you just bought him for his birthday, nor the spiffy new box of high-tech paints, but really wants to have piano lessons--today? What should you say when your ten-year old shouts that she hates that nasty new $1500 violin you just invested in, hates violin period, and is never going to practice again? Are there any software packages that can teach that teen-age Jimi Hendrix rehearsing...