The two internationally active musicians met in Krailling (near Munich) for a musical confrontation. The concert in question took place on 27th July 2012. Udo Schindler (Munich) and Katharina Weber (Berne) succeeded in spontaneously creating such consistent, varied and exciting music as only comes to musicians at particularly felicitous moments. They would therefore like to publish the recording of this concert, which is on a par with a studio recording in its concentration.