Abstract: A collapsible guitar kit designed to modify existing guitars so that guitar necks can be separated from guitar bodies for compact storage and for convenient interchanging of varying guitar necks with varying guitar bodies. The invention includes a neck plate, a body plate and a backing plate. The neck plate is provided to attach to a guitar neck. The body plate is provided to attach to a guitar body, and a backing plate is provided to attach to the underside of a guitar body. The neck plate and body plate provide a precision fit to each other by means of tooling points, while the backing plate provides consistent realignment and securing of both neck and body plates by means of a single bolt. The entire assembly is economical to manufacture and provides users the ability to modify any existing guitar to become collapsible for compact storage or for interchanging of various guitar necks with various guitar bodies.

Abstract: A pedal assembly for use in for use in a musical instrument, including a base plate, and a pedal unit, the base plate having two upright lugs and two key holes spaced between the upright lugs for mounting the pedal unit, the upright lugs having a respective backward coupling notch, the pedal unit having a mounting frame secured to the key holes of the base plate by tie screws, and two locating elements fixedly mounted at two opposite sides of the mounting frame and detachably coupled to the backward coupling notches of the upright lugs of the base plate, wherein the pedal unit can be turned downwards and collapsed when it is forced backwards to release the locating elements from the backward coupling notches of the upright lugs and the tie screws from the narrower front sections of the key holes.