9 Computer hardware and electronic devices and equipment, namely, touch displays, piano keyboards, speakers, cameras, depth sensors, lights, microcontrollers, audio cards, processors, audio processors, memory storage, computer vision processors, cables, wires, and piano pedals, all used together for piano learning and piano visualization, and all used with preinstalled computer software for piano learning and piano visualization; downloadable computer software for piano learning and piano visualization; downloadable and recorded computer software using artificial intelligence for piano learning and piano visualization