The world which most of us think we live in is not the world we actually live in. This becomes apparent when one considers some of the work in the field of quantum science where essentially there is no physical as we imagine physical to be. Instead, as Tesla hinted, there is only energy which ultimately creates the illusion of the physical.
With this in mind, it begins to make sense that sound alone can and does affect what we think of as the physical in various ways. Disease can be eradicated or induced for example.