This web page explores the definition, occurence, forms and theories of auditory hallucinations. Our sense of hearing is an important part of the way we experience and interact with our world. When this major sense is not functioning well, we do not enjoy the sounds of our favorite bands, birds singing, familiar voices, crazy parties and the feelings they evoke in us. Certain disorders affect our hearing and auditory senses creating illusions of hearing things which are not physically there. What is it like to hear voices and music that isn't there? How do these problems occur? What is the basis behind these disorders? What are the factors affecting whether These and other questions will be discussed in this website.