I believe they were talking about "A Beautiful Mind", and Horner wanted to demonstrate how it was less about a theme than about constantly shifting harmonic centers without any one firm base, comparing them (unsurprisingly, knowing the track titles) to a kaleidoscope. And I concur, the organization team absolutely has to have it on their mental checklist to always keep a piano ready in the future. Then again, any prior preparation for demonstrations or the like where hindered by the fact that, unlike Bramson, who had prepared his own talk, Horner's session was more of an interview/discussion, the topic plan of which was obviously planned by the moderators, not by him. This went to the point of him being somewhat surprised by some topic shifts on the program, remarking that he found it funny that after him rambling on about his increasing dissatisfaction with blockbusters and wanting to work on smaller, more intimate projects, they insisted on showing a clip from Avatar, obviously to get on with their pre-planned list of topics about the big scores. But then he really opened up towards the end, getting into an entertaining somewhat cynical mood of telling some anecdotes. Continuing irritations about his compositional habits notwithstanding, my opinion of his character really improved a lot this week.