| 摘要 |
A foot-controlled musical instrument, the control portion of which includes a heel rest mounted for rotation so that, while the heel of the playing person is firmly placed on the rest, the foot may easily be turned to various angular positions within a range of about 90 degrees, to bring the anterior part of the foot into position to make contact with any desired one of several (preferably six) pedal keys which, when activated, cause production of various sounds, e.g. according to a tonal scale. The pedal keys are mounted on a spring-loaded plate which may be depressed by foot pressure, the depression thereof serving to control certain characteristics of the produced sound. The heel rest plate is also mounted for movement in one or more linear directions in addition to its rotary movement, and these linear movements control other characteristics of the produced sound. Various other details of the control assembly are disclosed, as well as details of one form of sound production device appropriate for control by the control device or portion of the instrument.
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