Audio speakers; audio headphones; ear buds; apparatus for recording, transmission and reproduction of sound; accessories for recording, transmission and reproduction of sound, namely, microphone stands, cables and fibers for the transmission of sounds and images; computer hardware; computer and mobile application software for use in connection with the exchange of audio and video files related to music and entertainment, and to facilitate interoperability and communication between devices running on different computer platforms; computer software platforms for exchanging data, information and communication between software programs; mobile computing and operating platforms consisting of data transceivers, wireless networks, and gateways for the collection and management of data; embedded software for the operation of hardware components; downloadable cloud-based software for recording, transmission and reproduction of sound; computer software libraries, namely, downloadable software for recording, transmission and reproduction of sound