Patent ID: 8859878

Claim:
A method for identifying a half point of a pedal on a keyboard musical instrument, the keyboard musical instrument including: a key; a hammer constructed to make a pivotal motion in response to an operation of the key; and a string set comprised of at least one wire member and constructed to be struck by the hammer and the pedal constructed to make a stroke motion in response to a depressing operation performed thereon, the pedal being constructed to change a rest position of the hammer relative to the string set in accordance with a stroke position thereof, said method comprising: a step of striking the string set by the hammer in association with individual ones of different rest positions of the hammer, each of the different rest positions of the hammer corresponding to each of a plurality of stroke positions within one stroke of the pedal; a detection step of, in response to the hammer striking the string set, detecting data indicative of at least one of behavior of the hammer and reaction of the string set, said detection step detecting the data in association with the individual ones of the plurality of stroke positions; and an identification step of identifying a half point of the pedal on a basis of the data detected by said detection step in association with the plurality of stroke positions.