| 摘要 |
An analogical keyboard (1) with equal distance between the key's axis and with four key rows (8, 9, 10 and 11) which have interpenetration in an area ''B'' and in four different levels and with one tone interval between adjacent keys of the same row and a half tone interval between adjacent keys of immediately superior or inferior rows; the first row (8) being repeated by the third row (10) and the second row (9) being repeated by the fourth row (11), said rows (8, 9, 10 and 11) being composed by keys of an equal shape, area and disposition that permit same relative position of the notes in such a way that one can play same musical structures in different pitches with the same fingering, shape and movement of the hands. |
