Disclaimer: I have zero electrical engineering/physics/math experience. In fact, I am a painting major. (Laugh it up) That said, I've been dreaming for quite some time of a very exacting music visualizer which would put all other music visualizers to shame, in that it would have a different visual signal for each and every musical pitch, ranging from low A to high C, as on a piano. This visualizer isn't software based, though, its tuner-based. I want to modify basic guitar tuners so that their display, which triggers the little LED's which tell you which note you are playing and whether it is in tune, whenever you play a certain pitch to the tuner, would instead trigger a colored light to be turned on, each time a different one, depending on which pitch has been sounded. I would have 88 lights (for each pitch between low A and high C) arranged from lowest to highest, and 88 modified guitar tuners, each attached to one of those lights. Each guitar tuner is only listening for the note which corresponds to the particular light to which it is attached, because I will have modified the tuner to only trigger the light when pitches of a very small range are input. Ex. there will be a tuner and a light for middle A, 440hz, and the tuner will have been modified to only trigger the display (the light) whenever a pitch in the very close vicinity of 440hz has been detected. But this will also exist for every other note as well. Does anybody understand this dream of mine? I don't know any of the technical words, phrases, jargon, but I know exactly what I am trying to do. I just need help with learning how to modify the circuit boards of guitar tuners, (or perhaps building my own) and whether these are digital, analog, and how to connect them with LED lights, in order to bring about this interaction. I'm basically clueless about everything except for this vision. Just imagine a concert pianist who is playing Rachmaninoff or Brahms or Beethoven, or ANYTHING, and this elaborate device is positioned above him as he plays, so that the structure of the song is instantaneously revealed to your ears and eyes simultaneously, and in dazzling colors. This device could pick up any songs, whether they emanate from a speaker system or from a live band or from a lone singer, and reveal the structure of the music as it occurs.