At the concert, the pianist and the pianist inspired to play in four hands some extravagant thing of a little-known Polish composer. With each page the melody becomes faster and more difficult, musicians with increasingly tense faces play, nervously turning the pages and almost dropping the score on the floor. Finally, a tumultuous final, applause, tribute... And then the pianist takes a pack of notes, blows, furiously whispers... and roughly twists half up with her legs. A duet with happy faces sits down to play on.