continually extends from the top surface of the plate portion 14 to the bottom surface of the plate portion 14 in still other embodiments rather than being provided as countersunk holes the plurality of apertures 28 are in the form of elongated slots that taper inwardly as they extend from the top surface of the plate portion 14 to the bottom surface of the plate portion 14 the term u201c passive connection u201d is generally used herein to refer to an interlocking arrangement between components that enables the components to be operatively coupled with one another such that the movement of one component will bring about a consequential movement of the other component but does not require the components to be positively attached to one another thus in the particular context of this invention there is desirably a passive connection between the bent end portions of the cam rods 30 and the plate portion 14 by virtue of the bent end portions passing through the apertures 28 while this passive connection enables the movement of the plate portion 14 e g linear displacement to bring about a consequential movement of the cam rods 30 e g rotational movement it does not require the plate portion 14 to be positively attached to the cam rods 30 the passive connection between these two components 14 30 is very beneficial because it enables the neck 20 to be easily detached from the body 18 so that the musical instrument 10 can be readily serviced in particular the neck 20 can be removed and reinstalled to the instrument body 18 in the same manner as a standard bolt on neck system which does not contain a fret adjustment system by aligning the.