Dr. Charles Brodie Patterson, in "The Rhythm of Life" rightly emphasizes the importance of music in the educational scheme; the Greeks long ago taught the world the indispensability of music to culture. But rhythmic effects are produced not by sound alone; color also has its harmonies. "Color is sound made visible, and sound is color made audible." The regenerating, re-invigorating, therapeutic action of visible and audible harmonics on the human system is enlarged upon with enthusiasm by Dr. Patterson. The score of chapters treat of music as a compelling power, the dance, music and color tones, color tonics, music and character, cosmic consciousness, musical therapeutics, and other related themes, all presented with the persuasive charm that comes from earnestness and conviction on the writer's part.