9 Apparatus for recording, transmission or reproduction of sound or images; blank magnetic data carriers, blank record discs; computers; amplifiers, compact disc players, audio or video compact discs featuring music, instructions on the operation of musical equipment and computers, visual productions, film, and animation; computer keyboards, computer memories, recorded computer operating programs, computer peripherals, recorded computer programs for education and therapy; recorded computer software programs for education and therapy; printers for use with computers, disc drives for computers, blank floppy computer discs, juke boxes for computers and music; laptop computers, loud speakers, metronomes, microphones, computer hardware, note book computer, slide or photograph projection apparatus; projection screens, remote controls for musical instruments, keyboards, computers, radios, televisions and stereos; radio, telephone and television transmitters of electronic signals; DVD sound recording apparatus, speed regulators for record players; tape recorders, magnetic tape units for computers comprising blank magnetic computer tapes; demagnetizers for magnetic tapes; radio, telephone and television transmitters; electronic transistors, blank video cassettes, video game cartridges, video tape recorders, digital video recorders, video screens, video telephones, blank video tapes, word processors, computers for simulating piano music, sold as accessories to mechanical pianos, computers and computer operated musical instruments