HAMMER DETECTOR AND PLAYING INFORMATION ACQUIRING DEVICE

摘要

PROBLEM TO BE SOLVED: To more exactly and continuously detect physical quantities relating to the motion of hammers. SOLUTION: A hammer sensor 26 continuously detects the motion of the hammer 2 according to the key touch by a player in the section after a string is struck form a rest position and returning to the rest position again. Various kinds of the information relating to playing are acquired by a playing recording section 30 in accordance with the motion of the hammer 2 continuously detected in the manner described above.