After reading your post- I got to thinking...............I just recently attended a recital where a young highschool boy played the Chopin g minor Ballade and after hearing it- the first words that came to my mind were "That was good......................for a high schooler." .........meaning, I had to validate it was ok because the kid was young, but in all honesty- it was too sophisticated for him- musically and technically. I was most wowed by the kids who played pieces that were approriate for their advanced level- easier pieces- yet still very advanced for their age. As I get older-my reverence for the great works grows and I find it more and more difficult to forgive a performer because of their age- and far too often, teachers are giving their students pieces that are too mature for any amateur. Whatever pieces you decide to give your student- make sure that he sounds GREAT-..............and not "Great for a Senior". Far too often, performers do the composers an injustice by attempting a work that is more than beyond their reach. It's not fair to the composer, it's not fair to the student who is missing out on the steps he should be taking to get there, and it's not fair to the educated audience who wants to hear a trully great performance. Think about all of this and let me know if you agree. If your kid has phenominal technique- let him show off on stage with Etudes- if he has phenominal musicality- let him show off with a Chopin Nocturne- if he has both- then I would probably work on Liszt's easier works- like maybe one of the Hungarian Rhapsodies- even the Dante Sonata (very hard) but easier than the great b minor sonata- that piece is even too hard for some Doctoral students! Just an opinion- take it all with a grain of salt if you do not conquer! also- I am curious what you do decide to have him play- please let us know!