Moses Ibn Ezra dealt with music in two of his main books including Maqalat Al Hadiqah which was written during his exile to Castille. In he deals with the metaphor in the bible and includes philosophical, theological and philological interpretations. The discussion on music encompasses: the definition of sound, and the sonorous process of communication. Parts of the text is edited and translated. Human and animal sounds are discussed as are the voice and musical values of the vocals.