KEYBOARD INSTRUMENT SELECTIVELY ENTERING INTO ACOUSTIC SOUND MODE AND SILENT MODE THROUGH ANGULAR MOTION OF KEY BED STRUCTURE

摘要

The present invention relates to a keyboard musical instrument having a dry structure capable of angular movement so as to be selectively operated in an acoustic sound mode and a silent mode. The keyboard musical instrument of the present invention includes an acoustic piano 100 having an electronic sound generating system 200. And, the dry structure 310 is configured to be movable between the acoustic sound mode and the electronic sound mode, thereby changing the gap formed between the plurality of hammer heads 145 and the plurality of sets of strings 150. Thus, the player can play music with acoustic and synthesized sounds.