audio signal processing equipment, namely, audio dynamics processors; podcast audio mixers; computer hardware and recorded software for creating digital audio networks; computer hardware and recorded software for creating digital control networks; digital interfaces for computers for audio recording; downloadable software for audio and video editing, recording and production; audio amplifiers; audio interfaces; sound mixing and recording consoles and controller desks; audio speakers; Video capture systems in the nature of hardware that translates digital video signals to USB transport protocols; video production systems in the nature of video switchers, namely, hardware for selecting digital video inputs and converting multiple video inputs to a single output; downloadable video editing software; amplifiers; keyboard amplifiers; signal converters; sound equalizers and crossovers; stereo receivers; transceivers; microphones; sound effects pedals for musical instruments; electric sound mixing apparatus, namely, mixing consoles; audio cables; headphones and headphone amplifiers; computer monitors for audio studio use; guitar microphones and amplifiers; downloadable electronic publications in the nature of manuals in the field of sound recording production; downloadable electronic publications, namely, magazines in the field of audio production; digital music downloadable from the Internet; Interactive educational software for teaching and learning musical composition, featuring music notation and musical composition generation technology