Ashkenazy rehearsing the 5th Piano Concerto with Edo de Waart and discussing Beethoven at around age 30 (1968)...
Ashkenazy performing the 3rd Piano Concerto at age 37:
Age 48 he discussing the inexpressible nature of Beethoven's music and how it seems to be inexhaustible...(I love this interview)
And in 2005, at age 68 conducting the 9th Symphony!
He really got with the program, eh?