Two performers on stage, a football net, a piano, a projection screen, large technological hand-made equipment, two guitars, a big punching bag and many soccer balls for an unclassifiable pièce, suspended between performance, concert and conference. The artists revisit Billy Jean by Michael Jackson and the Stabat Mater of Pergolesi, with a flute and a tennis game played with guitar and make the audience discover the perfect chord pulling balls against a cardboard.