When a young reporter is assigned to interview the famous violinist Paolo Levi, she is told not to ask "the Mozart Question." The problem is that she has no idea what that question is. When see meets Levi, her nerves cause her to babble, and she mentions that she isn't going to ask the "Mozart Question". Instead of immediately ending the interview, Levi unexpectedly tells the story of how he became a violinist, a story that also includes the stories of his parents, who were once violinists themselves, and who used their music to save their lives.
This is a powerful story about the horrors of the Holocaust, and the struggles faced by those who survived. The author doesn't shy away from the brutal reality of the concetration camps, so that while this is a children's book, parental guidance is strongly suggests to ensure that young readers are prepared for this material. These same young readers are likely to come away from this book with lots of questions, so parents also need to be prepared to discuss this topic, as well.
While this book deals with the weighty issues of the Holocaust, it also is a story of survival and of sharing the truth. In the end, these positive messages carry the story, and help to keep it from being overwhelmingly depressing.