Touch sensitive control with visual indicator

摘要

A music touch control system for an audio performance product is disclosed. The system includes a touch control surface configured and arranged to set and cause activation for playing a tone in an audio performance product; and a visual indicator connected to the touch control surface representing semitones of the tone. The visual indicator has a neutral tone point with +12 semitones above the neutral tone point and−12 semitones below the neutral point. Touching the control surface along the length thereof causes the audio performance product to play the semitone corresponding to the portion of the touch control surface touched and the visual indicator to indicate the semitone of the selected semitone. The system can be used to represent the playing time of a song and permit navigation instantly to a point in the song.