The proposed collection of psychological tests and questionnaires has been specially created to help a teacher-musician working with children, adolescents and young people. The collection will help you better understand your student: his personality, character traits, thinking, emotional and volitional spheres. This collection is especially useful for those teachers who got "difficult" students. You can understand the causes of difficulties and, sometimes, "oddities" in the behavior of your student by inviting him to perform special diagnostic tasks.