I think its because diffrent kinds of music have diffrent meanings
The Rococo style is described as playful, light-hearted, and fanciful. This style in interior design, the decorative arts, painting, architecture, and sculpture developed at 18th century. The style is characterized with natural motifs, elaborate carved forms, asymmetry, acanthus leaf as basic motif of Rococo design...
Occupying that tenuous space between fine art and the everyday, functional art refers to aesthetic objects that serve utilitarian purposes. The genre is remarkably inclusive: it encompasses everything from furniture and lighting to dishes and even books.
In the strictest sense, Fine Art is considered a visual object with no functional purpose except to be admired and contemplated as an aesthetic object. Decorative Art, however, is also visual and aesthetically pleasing but serves a useful function such as a piece of furniture, tableware, textiles and so on.
Hope this helps :)
