| 摘要 |
<p>In the preset invention, in an initial stationary state of a drumstick section (10), a CPU (11) stores acceleration that occurs due to gravity and is obtained by an acceleration sensor (122) in a RAM (15), obtains, at every predetermined timing, acceleration that occurs due to a motion provided to the drumstick section (10) and is obtained by the acceleration sensor (122) at a predetermined timing, accumulates the accelerations each obtained at the predetermined timing for each predetermined interval, and conforms the accelerations obtained by accumulation to the acceleration stored in the RAM (15).</p> |
