My teacher Lyz Cooper’s interview for The Guardian is a good starting point to answer this question.
Sound therapy is a branch of alternative therapy that uses sound and self-reflection tools to advance an individual’s well-being. It can help with a wide range of issues, from the management of minor episodes of stress to improving the lives of people with degenerative conditions like dementia and chronic inflammation. It is not only instrumental for emotional and spiritual rebalance, but very useful for physical ailments.
It is different from sound healing because it uses elements of talking therapies to complement the beneficial effects of sound on our minds and bodies. Moreover, it refers mor eto neuroscience findings than to the framework of Energy Medicine.
Sound therapy can be performed with various musical instruments and even electronic beats. The aim is to induce the brain in an alterate state of consciousness (ASC) in which it produces brain waves that are usually present in deep states of relaxation and during sleep – both phases of regeneration for the brain.