""Color in Music"" explores the fascinating link between auditory and visual perception, focusing on synesthesia, particularly chromesthesia, where sounds evoke color. The book examines how musicians and artists consciously use color principles, revealing unseen connections between music and art. By understanding these connections, readers gain insights into the creative process and how humans experience the world through multiple senses. For example, some synesthetes might perceive a specific musical note as a particular shade of blue, demonstrating the brain's unique cross-sensory wiring. The book begins by tracing the history of synesthesia research and explaining different types of synesthesia in accessible language. It argues that the sound and color relationship, whether through synesthesia or artistic intent, uncovers fundamental aspects of human perception and creativity. Challenging traditional views of separate senses, it emphasizes how cross-modal experiences enrich artistic expression. Structured in three parts, the book covers core concepts of synesthesia and color theory, explores historical and contemporary examples of musicians using color, and analyzes the influence of color perception on musical composition and performance, culminating in applications for art education and therapy.