9 Downloadable computer software and firmware for sensor processing and the interactive control of computer hardware; computer hardware; downloadable interactive game software; downloadable interactive multimedia software featuring audio and visual information on the subjects of music, musical instruments, music instruction, gaming, accessibility, switch control and computer coding; downloadable graphical user interface software; electronic apparatus in the nature of computer hardware for the input, output, recording, processing and reproducing of sound and/or images; electronic data input apparatus, namely, computer hardware; computer data input apparatus, namely, computer hardware; peripheral devices for computers; peripheral interface apparatus for computers; man-machine interface apparatus, namely, remote cursor controls for computers, virtual reality glasses, and electrical controlling devices; instructional and teaching apparatus and instruments, namely, computer hardware peripherals which may be affixed to a smartphone for the creation of music, use as an accessible controller and/or for computer coding; downloadable electronic publications in the nature of newsletters, journals, books, instruction manuals and magazines in the fields of music, musical instruments, music instruction, music technology, signal processing, sensor analysis, music production, accessibility, accessible music, accessibility instruction, accessible computer coding, computer coding and/or software; downloadable musical sound recordings; digitized data carriers in the nature of blank optical data carriers; blank optical and electro-optical data carriers; blank magnetic and electromagnetic data carriers; pre-recorded CDs and DVDs featuring music, information about musical instruments, information on learning to play musical instruments, educational information on accessible technology, computer coding; blank CD-ROMs for sound or video recording; blank recordable CD-Rs and DVD-Rs; visual and audio recordings featuring music, information about musical instruments, information on learning to play musical instruments, educational information on accessible technology and/or computer coding; communication interface units in the nature of computer network interface devices; computer interface apparatus in the nature of user interfaces, namely, electric control panels, touch mice, touchpads, touchscreens, keyboards, joysticks, 3D joysticks, accessibility switches, MIDI keyboards for electrotechnical and electronic devices; digital audio interfaces in the nature of hardware that improve the sonic capabilities of computers; downloadable UPI (universal peripheral interface) software; audio interfaces; interface network modems; high definition multimedia interface cables; downloadable computer software, namely, application programming interface (API) software for sensor processing and the interactive control of computer hardware; electrical tactile switches, namely, switches responding to touch; electronic motion sensitive optical switches; electronic touch sensitive switches; electrical wireless switches; electrical pressure switches; electrical optical switches; electrical touch switches; wireless electromagnetic switches; power switches for audio speakers; electrical high-frequency switches; automatic transfer switches; structural parts and structural fittings for all the aforesaid goods