Plato believed that music could reveal truths about the world that could not be accessed through reason alone.

Pythagoras believed that the intervals between notes in music could be expressed mathematically, and that music could therefore be used to study the universe.

Aristotle believed that music could serve a variety of purposes, including entertainment, education, and therapy.

Romantic era composers believed that music could be used to express emotions and ideas that could not be expressed in words.

Schoenberg believed that music could transcend the limitations of language and express truths that could not be expressed in words.

Musical Platonism is the theory that music can reveal truths about the world that cannot be accessed through reason alone.

Musical Epistemology is the theory that music is a form of knowledge that can be used to understand the world.

Musical Therapy is the theory that music can be used to treat mental and physical illnesses.

Musical Aesthetics is the theory that music is a form of art that can be appreciated for its beauty and emotional impact.

Musical Ethics is the theory that music can be used to promote moral values and ethical behavior.

Musical Ontology is the theory that music is a form of being that exists independently of the mind.

Musical Materialism is not a philosophical theory about music. It is a theory about the physical nature of music.

Scientific knowledge is not a type of musical knowledge. It is a type of knowledge about the natural world.

Music therapy for animals is not a type of musical therapy. It is a type of animal therapy.

Noise music is not a type of musical art. It is a type of experimental music that is characterized by the use of harsh and dissonant sounds.