This is where the late Dr Manners and the Cymatic approach are involved. he found that when 5 sine wave sound frequencies particular for each system are invoked a 3D activation/sympathetic resonance of tissue, organs ect occurs. The idea is mal functioning or subpar systems are off normal frequency and can be brought back to healthy frequency by submitting them to the five closest corrrect frequencies.
Tho a bit unsubstanciated over all, the effects are quite clear and observable. One area that recently has produced papers was on healing a race horses tendon tissues. ( animals being so good at not being prone to placebo affect help this evidence vs the human studies)