| 摘要 |
<p>PURPOSE: To obtain a keyboard musical instrument which is usable for amusements for old people and is helpful for preventing aging by the exercise of fingertips in addition to use as a toy for children by mounting auxiliary keyboards to all the keyboards exclusive of the keyboards for semitones of a small-sized keyboard musical instrument. CONSTITUTION: The small-sized keyboard musical instrument is composed of two units for the right hand only and the left hand only as one set. The auxiliary keyboards 3 are mounted at all the keyboards exclusive of the keyboards for the semitones of the keyboard musical instrument. Belts 2 for fixing the keyboard musical instrument to the hands are disposed in the upper part of main body 1. The small-sized keyboard musical instrument for the right hand is, therefore, fixed to the right hand and the small-sized keyboard musical instrument for the left hand to the left hand by the respective belts 2. The user is able to produce sounds simply by bending the fingers and pressing the keyboards or the auxiliary keyboards 3. Since each of the ten fingers of the right and left hands corresponds to just one keyboard, the user is able to easily learn the keyboards. The semitones are eventually produced by directly pressing the keyboards for the semitones with the fingers. In such a case, the keyboards to be pressed are pressed by the thumb of the hand opposite to the musical instrument where these keyboards exist.</p> |
