Magnetic control means for an electronic musical instrument

Claim 1

A MAGNETIC CONTROL MEANS FOR AN ELECTRONIC MUSICAL INSTRUMENT COMPRISING A MAGNETICALLY SATURABLE CORE ELEMENT HAVING AN INPUT LEAD AND AN OUTPUT LEAD MAGNETICALLY COUPLED THEREWITH; A ROTATABLE MAGNETICALLY CONDUCTIVE UNIT HAVING A PERIPHERY POSITIONED PROXIMATE SAID CORE ELEMENT FOR PERIODICALLY VARYING THE DEGREE OF SATURATION UPON SATURATION OF SAID CORE ELEMENT; A MAGNETIC FIELD PRODUCING DEVICE; A MOVABLE KEY MEMBER FOR CONTROLLABLY POSITIONING SAID DEVICE WITH RESPECT TO SAID CORE ELEMENT FOR CONTROLLING THE DEGREE OF SATURATION OF SAID CORE ELEMENT; AND MEANS FOR ROTATING SAID UNIT, SAID KEY MEMBER HAVING A NORMAL POSITION IN WHICH SAID DEVICE IS POSITIONED SO THAT SAID CORE ELEMENT IS UNSATURATED SO THAT SIGNALS AT THE INPUT LEAD ARE DELIVERED TO THE OUTPUT LEAD OF SAID CORE ELEMENT, AND HAVING AN ACTUATED POSITION IN WHICH SAID DEVICE SATURATES SAID CORE ELEMENT AND SAID ROTATING UNIT PERIODICALLY VARIES THE DEGREE OF SATURATION OF SAID CORE ELEMENT BY VARYING THE CONDUCTANCE OF MAGNETIC FLUX THERETHROUGH AS A FUNCTION OF TIME.