Healing At The Speed Of Sound Vol 2 Focus & Vitality: How What We Hear Transforms Our Brains and Our Lives CD by Don Campbell (The Mozart Effect) and Alex Doman offers classical, baroque and contemporary music that will sharpen your mental abilities by stimulating your brain through specially chosen frequencies, tempos and musical structure. Bestselling author and musician Don Campbell (The Mozart Effect) and Alex Doman, founder of Advanced Brain Technologies, put their artistic and scientific expertise together in this fine compilation of relaxing and harmonizing music that accompanies the visionary book Healing At The Speed Of Sound: How What We Hear Transforms Our Brains and Our Lives.