Compact disc players; DVD players; loudspeakers; equalisers [audio apparatus]; audio interfaces; audio mixers; audio- and video-receivers; sound reproduction apparatus; sound transmitting apparatus; sound recording apparatus; portable media players; subwoofers; transmitters [telecommunication]; amplifiers; transmitters of electronic signals; headphones; microphones; radios; television apparatus; smartphones; digital signs; electroacoustic transducers; computer peripheral devices; computer software, recorded; computer software applications, downloadable; downloadable computer software for controlling audio signal processors, audio mixers, and audio interfaces; interfaces for computers; semi-conductors; metronomes; electric and electronic effects units for musical instruments; downloadable music files; electronic sheet music, downloadable; electronic publications, downloadable.