Abstract: A stringed musical instrument having an elongate neck and a body which may have a resonant cavity at one end and a head at the other end thereof. Strings extend across the neck and, when vibrated, generate musical sounds. The invention relies upon fingerboards which are removable so that a fingerboard can easily be repaired and replaced, or otherwise so that one fingerboard may be substitutable for another type of fingerboard in order to generate sounds of different timber or of different qualities. In a preferred embodiment, fretted fingerboards are substitutable for non-fretted fingerboards. Moreover, and in a preferred embodiment, the fingerboards are slid into and out of slots having beveled edges in the neck of the instrument.