Bremen Ke Sangeetkar is a book which deals with the emotions of animals that works for human. This book is written by Ann Jungman. However, the book that I am presenting you is the Hindi translation which is from the pen of Arvind Gupta.
Also the story of Bremen Ka Sangeetkar starts with a story of a donkey and his master. The donkey has become quite old, so his master do not need him anymore. And decides to give him to the slaughtering house. This made donkey cried and at night he left the home.