Little Boy at a Big Piano

Wishing to encourage her young son's progress on the piano,a mother took her boy to a Paderewiski concert.After they were seated,the mother spotted a friend in the audience and walked down the aisle to greet her. 　
　 Seizing the opportunity to explore the wonders of the concert hall,the little boy rose and eventually explored his way through a door market"No Admittance'.When the house lights dimmed and the concert was about to begin,the mother returned to her seat dnd discovered that the child was missing. 　
　 Sudenly,the curtains parted and spotlights focused on the impressive Steinway on stage,in horror,the mother saw her little boy sitting at the keyboard,innocently picking out"Twinkle,twinkly Little Star