Trade in musical instruments, sheet music, books and printed matter of all kinds, devices for the production and reproduction of music (including accessories, hi-fi systems, synthesizers, keyboards, etc.), communication electronics devices, computers (hardware and software) and printers; manufacture and trade in sound recordings, publishing products and paper and writing materials of all kinds; manufacture, repair and rental of musical instruments and toys of all kinds; operation of a music school and artist agency; assumption of general agencies; acquisition, management and exploitation of intellectual property rights of all kinds; consulting in the fields of marketing and advertising, participation in other companies; purchase and sale of real estate.