Optical, electrotechnical and electronic appliances and devices ; electrical devices for recording, emitting, transmitting, switching, receiving, reproducing and processing sounds, signals, characters and/or images; integration of voice, image, text, data, multimedia, full-motion video communications in networks; devices for recording, processing, sending, transmitting, switching, storing and out putting messages, information and data; communications computers; software; optical, electrotechn...

Publications, namely, catalogs featuring a wide variety of musical and disc jockey equipment, musical instruments, lighting, speakers, and sound equipment; printed instructional and teaching materials all in the field of musical instruments