What is the main reason for placing music and painting in different categories?

Music is auditory and painting is visual

The governing concept is the sensory medium through which an art form is experienced. Music is primarily received through hearing: rhythm, melody, harmony, and other organised sounds carry its expression. Painting is primarily received through sight: line, shape, colour, texture, and arrangement communicate its visual meaning. Thus option D gives the main and most reliable reason for placing them in different categories. Option A is false because both require artistic creation, and option B is false because neither art form exists only as writing. Option C is too absolute: music and painting may have different methods, but their purposes can overlap, such as expressing emotion, telling a story, or communicating an idea. The classification is based mainly on auditory versus visual experience.

This is a Class 9 Art Education question. Chapter: Introduction to Art. Topic: Types of art.