My 9 year son is taking piano lessons and is doing good,how do i keep him interested as he gets older?

Related posts:

1. How Many Times A Month Should A Beginer In Piano Receive Lessons?
2. How Many Times A Month Should A Beginer In Piano Receive Lessons?
3. To Be A Successful Music Producer, Do I Need To Take Piano Lessons?
4. How Can I Get My Teenage Child To Enjoy Piano Lessons?
5. The Proper Age Of Your Child To Begin Piano Lessons : How to Learn Lessons for Piano ?