You know, the one featuring Herbert Grönemeyer as Schumann and Gidon Kremer as Paganini

I just wanted to know the name of the piece that Clara plays with those other three pianists during a concert that is shown some 20 or 25 minutes into the film. It sounds Czerny-like

but I'm not sure it really is a work by Czerny.
So...anyone?

Cheers,
Musikalischer Wirbelwind