Electrical communication machines and instruments of audio and video, namely, apparatus and instruments for recording, transmitting, reproducing, processing, storing, boardcasting or streaming sound, images or data; audio amplifiers; amplifiers; preamplifiers; loudspeakers; wireless speakers; headsets; headphones; earphones; microphones; volume level controllers; audio mixers; audio interfaces; digital sound processors; digital voice signal processors; graphic equalizers; digital audio players; audio recorders; video recorders; video mixers; audiovisual mixers; audio and video signal processors; wireless transmitters; wireless receivers; apparatus for recording, transmission, processing and reproduction of sound, images or data; downloadable computer software; downloadable computer game programs; downloadable computer software for music production; downloadable computer software for creating and editing music and sounds; downloadable computer software for creating, editing, recording and reproducing music and sounds; downloadable computer software for processing digital music files; downloadable computer software for controlling electronic musical instruments; downloadable computer software for practicing musical instruments or playing along with music; downloadable video game software; downloadable entertainment software for use with computers; downloadable entertainment computer software for playing game and music; downloadable computer software for playing game and music; effects pedals for use with electrical musical instruments; electric and electronic effects units for musical instruments; amplifiers for musical instruments; metronomes; wireless transmitters and receivers for electronic musical instruments; downloadable music files; downloadable image files; downloadable music, voices, images and videos; downloadable computer software for streaming audiovisual media contents via the internet; downloadable video and audio recordings featuring music and musical performances; downloadable electronic publications in the nature of magazine, catalog in the field of music, sound and video