What the brahms piece is called??

Cane any kind soul tell me the title of the piano music that crops up throughout the series.It's played during the concert, and again when Ellie tries to escape as Irma plays (See Clip http://www.youtube.com/watch?v=vJ_pK9i5kwU).

Any help much apreciated. Many Thanks x x x x x

'The truth is rarely pure, and never simple' Oscar Wilde