Music Sub-Category Music is a performing art and could be vocal or instrumental. If you like to sing or play an Instrument, look for the appropriate choice and genre. Music is generally defined as the art of arranging sound to create some combination of form, harmony, melody, rhythm or otherwise expressive content. This could also be part of a dance or theatre production. Listening to music for enjoyment or as a relatively passive activity may not fall under the strict definitions of a hobby. However, if you pursue this diligently as a connoisseur or rasika, there are ample opportunities on HobbyCue.