The Boombastic Ninjas' concerts in the park are well attended, the crowd goes wild and girls ask Leon, Max and Maurice for autographs. When MC Sonaar announces his visit because he wants to book the Ninjas as an opening act for his tour, the three friends think they are already in the charts. Barenboim is not unaware of his pupil's lack of interest in classical music, and so he tries to motivate Max by introducing him to a very special instrument. For a piece from the "Carnival of the Animals" can be played excellently on a glass harmonica after Benjamin Franklin. And both the instrument and the piece have one thing in common: they are full of passion, a quality that is almost more important for the musician than talent.