Abstract: A stringed instrument intended to be alternately played in a fretted mode or an unfretted mode by raising a separate fingerboard to the tops of the frets for the unfretted mode and lowering it for the fretted mode. A pair of meshed rack-and-pinion assemblies are driven back and forth by a lever the motion of which racks are translated to rails that cam the separate fingerboard up and down through pins protruding inwardly from the rails into slide slots in flanges of the fingerboard.

Abstract: A wall-mounted hook for hanging a string instrument from a neck proximate a head having pegs for tuning strings comprising a wall-mounting plate having a protruding base, a yoke having a shaft and two prongs extending from said shaft, said prongs being spaced to engage said instrument around said neck thereof proximate said tuning head, and means for securing said shaft to said base and for allowing said yoke to swivel on said base about an axis of said shaft.