The present disclosure relates to a system and method for visualization of music and other sounds. In one embodiment, the twelve notes of an octave are labeled around a circle. When notes are played, the intervals between the notes are visualized by displaying a line between the labels corresponding...http://www.google.com.hk/patents/US7538265?utm_source=gb-gplus-share專利 US7538265 - Apparatus and method for visualizing music and other sounds