In 1990, Dr. Minson learned of the effectiveness of sound therapy after witnessing the successful treatment of his own daughter for severe dyslexia and depression. Dr. Minson subsequently studied a number of sound therapy techniques before developing his own, Dynamic Listening Systems (DLS), which he integrated into his psychiatric practice. With the advent of digital technologies, iLs was launched in 2007 to provide a more affordable and effective therapy (sound combined with visual, vestibular and movement) which could be used in homes and schools as well as clinics. Dr. Minson currently practices psychiatry in Denver, CO, serves as the Clinical Advisor and Advanced Certification trainer for iLs, and presents domestically and internationally on the therapeutic application of sound.