Advertising, exclusively in the field of studio, lighting and sound technology and musical instruments; [ business management, exclusively in the field of studio, lighting and sound technology and musical instruments; business administration, exclusively in the field of studio, lighting and sound technology and musical instruments; office functions; ] retail, wholesale, on-line retail, and on-line wholesale store services featuring equipment for recording, transmission and reproduction of sound and images, sound carriers and data carriers, electric and electronic equipment for musical effects, electric and optical data carriers, data processing equipment and computers, computer plug-in cards, computer software, image and sound processing systems for gathering and subsequent processing of information, CD players, equipment for signal transmission and impedance conversion, headphones, speakers, microphones, sound converters, mixing consoles, digital mixing consoles, music processing equipment, sound power amplifiers, level converters, projectors, power mixers, record players, networking and communications equipment, audio interfaces, A/D converters, and D/A converters; retail, wholesale, on-line retail, and on-line wholesale store services featuring lighting equipment, in particular lighting equipment for generating lighting effects, light sets, decorative lighting, housings for lighting equipment, filters for lighting equipment, lamps, smoke machines, control equipment for lighting equipment; retail, wholesale, on-line retail, and on-line wholesale store services featuring musical instruments and musical instrument accessories, in particular electronic musical instruments, cases, covers, boxes, trunks and bags for musical instruments, chin rests for violins, keyboards for musical instruments, perforated music rolls, mouthpieces for musical instruments, music tapes, turning equipment for sheet music, kettledrum frames, bass drumsticks, pedals for musical instruments, reeds for wind instruments, strings for musical instruments, musical boxes, stands and mounts for musical instruments, bridges for musical instruments, tuning forks, tuning hammers, conductors' batons, keys for musical instruments, valves for musical instruments, wind guards and pop guards for microphones, keyboards, with and without generating sound, synthesizers, pianos, grand pianos, digital pianos, accordions, woodwind and brass instruments, classical guitars, double basses, cellos, and violins

[ Educational services, namely, providing training classes in the field of studio, lighting and sound technology and musical instruments ]

[ Creating and maintaining web sites for others; scientific and technological services, namely, research and design in the field of computer networking hardware ]