Maria Joao Pires - concert mixup

Maria Joao Pires, after realizing the entire orchestra is playing a different piece then she was expecting, tries to remember the piece from memory; quite amazing (first 3:30mins). Spotted here: http://blogs.telegraph.co.uk/news/damianthompson/100243153/pianist-maria-joao-pires-panics-as-she-realises-the-orchestra-has-started-the-wrong-concerto/