9 Apparatus for recording, transmission or reproduction of sound or images; magnetic data carriers, recording discs; data processing equipment and computers; computer software; computer software for manipulating digital audio information; computer software to control and improve computer and audio equipment sound carrier; compact discs containing recorded sound and video; accessories for musical instruments, namely, audio mixers, laser turntable, synthesizer, horns for speakers, audio speakers, microphones, music sequencers, electronic sound effectors, electronic tone generators, needles for record players, sound recording apparatus, sound reproduction apparatus, sound transmitting apparatus, speed regulators for record players, tone arms for record players, digital MIDI controller, vacuum tubes, amplifier for musical instruments, acoustic couplers, earphones; discs containing software and programming pre-recorded for use in audio mixing to mix sounds so as to fulfill the function of a DJ operation system, computer software featuring musical sound recordings and video recordings