Abstract: Grooves or channels are formed along the edges, and/or at other selected locations, of a guitar, of other musical instruments; as might be done in purfling and binding for such instrument. A fiber-optic bundle is laid into the groove and overlayed with a veneer of suitable wood, or other appropriate materials, but in such a manner that ends of selected fibers are aligned with and/or extend through suitable apertures formed through the veneer overlay. The individual fiber-optic bundles are then gathered into a main fiber-optic trunk line which is directed through an entry channel and away from the instrument; terminating at a source of illumination.