This guide for young musicians contains carefully organized and graded information to provide a sound introduction to the theory of music. It aims to enable beginners to progress systematically and acquire the knowledge they need for their practical studies. Explanations give a clear grounding in the basic concepts, while music examples help to explain more complex ideas. There are also features about the history and development of music, put into context by looking at instruments. In addition, there are charts and checklists for quick reference, and each new topic is backed up with puzzles to help readers develop their theoretical skills.