| 摘要 |
PURPOSE:To enable performance with a feeling by technique similar to those of an acoustic piano by striking a musical sound characteristic indicating means and rotating a hammer arm in the direction wherein a key in pressed gravitationally at the time of depressing key. CONSTITUTION:When the key 2 is pressed down, one end part 17 of the hammer arm 5 is pressed down to rotate clockwise. At this time, an inertial force rotating the hammer arm 5 in the same direction is generated by the weight 21 provided at the other end part 18 of the hammer arm 5, one end part 17 is released from being pressed by the key 2 to rotate in the same direction with the inertial force generated by the weight 21; and an operation part 27 protruded at the other end part 18 presses the musical sound characteristic indicating means 28 to generate a musical sound with fixed scale. Consequently, fast fingering and fine distinctive performance such as a trill become possible with the same feeling with the acoustic piano and performance by technique similar to that of the acoustic piano is enabled. |
