I had a thought...we can measure many things by frequency; light, electrical impulse, musical notes, light waves, vibration. why not creat a booth that can re-create ANY frequency not harmful to humans...and it plays all the octaves of a song throughout the full spectrum. you would literally see touch and hear a song. you would feel vibration from the lower frequencies and and the higher frequency "octaves" would produce light. Thoughts? maybe my shit ain't so week after all LOL