The fascinating story of our leading master - Josef Kalous. He tunes the piano for presidents at Prague Castle, in the Spanish Hall, in all possible concert halls, at Czech Radio, for various ambassadors at embassies, but also for us, normal people. The story is very engaging and takes us into the distant world of the craft of tuners and into the world of the blind. If we can't see, we turn on the lights, but what about them? Can you imagine moving around the castle in the dark? And that's all the book is about. Pepča was among the close friends of Vadim Petrov, who was also his witness at the wedding with his wife Hanička. The book is originally written in Braille, you can read it here in Latin.