Herr Pfühl, in fact, had a constant grievance in the small understanding there was for his accomplishments down there among the Senators, Consuls, citizens, and their families. And thus, he liked to have his small pupil by him, to whom he could point out the extraordinary difficulties of the passages he had just played. He performed marvels of technique. He had composed a melody which was just the same read forward or backward, and based upon it a fugue which was to be played “crab-fashion.” But after performing this wonder: “Nobody knows the difference,” he said, and folded his hands in his lap with a dreary look, shaking his head hopelessly. While Pastor Pringsheim was delivering his sermon, he whispered to Hanno: “That was a crab-fashion imitation, Johann. You don’t know what that is yet. It is the imitation of a theme composed backward instead of forward--a very, very difficult thing. Later on, I will show you what an imitation in the _Strenge Satz_ involves. As for the ‘crab,’ I would never ask you to try that. It isn’t necessary. But do not believe those who tell you that such things are trifles, without any musical value. You will find the crab in musicians of all ages. But exercises like that are the scorn of the mediocre and the superficial musician. Humility, Hanno, _humility_--is the feeling one should have. Don’t forget it.” On his eighth birthday, April 15th, 1869, Hanno played before the assembled family a fantasy of his own composition. It was a simple affair, a motif entirely of his own invention, which he had slightly developed. When he showed it to Herr Pfühl, the organist, of course, had some criticism to make. “What sort of theatrical ending is that, Johann? It doesn’t go with the rest of it. In the beginning it is all pretty good; but why do you suddenly fall from B major into the six-four chord on the fourth note with a minor third? These are tricks; and you tremolo here, too--where did you pick that up? I know, of course: you have been listening when I played certain things for your mother. Change the end, child: then it will be quite a clean little piece of work.” But it appeared that Hanno laid the greatest stress precisely on this minor chord and this finale; and his mother was so very pleased with it that it remained as it was. She took her violin and played the upper part, and varied it with runs in demi-semi-quavers. That sounded gorgeous: Hanno kissed her out of sheer happiness, and they played it together to the family on the 15th of April.