Keyboard instrument with the display device employing fingering guide

摘要: A display device displaying a plurality of information sets with simple structure, and keyboard instrument that has key guide including such device. The is driven at cycles shorter than those discernible by human beings, the time ratio ON period to OFF for changed based on control data. More specifically, state are inverted each drive cycle, or number during which in can selected, cyclically turn means only designated cycle. In this manner, luminance hues be relative continuous lighting, displayed change. This may employed as fingering instrument, position data keys depressed other playing same time.