Musical acoustics presents a unique opportunity to see science and art working together. This book is a balanced presentation of all aspects of musical acoustics. It explains how our ears and brains interpret musical events, and connects traditional physical analyses to musical reality. The purpose of the book is two fold: (1) To help readers use simple physical concepts as tools for understanding how music works, and (2) To use readers' interest in music to motivate the study and appreciation of scientific methods. Any given chapter will challenge readers with several points that are not obvious on the first reading. Starred sections are optional and are not a prerequisite to later sections.