Herr Tietz now produced a concerto of his own composition, the Allegro and Rondo of which he played twice, possibly because the first time did not please him. As he never had practised since his madness, it may be readily conceived that technical firmness was wanting in his play. The difficult passages also, were executed very much better the second time. Into all the three parts, he introduced cadences in the old style, improvising them; they were in themselves very pretty, but sounded quite different the second time.