Interchangeable guitar

A stringed instrument having a shell body, a main body and a neck, said main body and neck connected to said shell body, said main body detachably connected to said shell body, said main body connected to a bridge, said neck connected to a headstock, at least a portion of said bridge detachably connected to said main body, said headstock detachably connected to said neck.

A stringed instrument having a shell body, a main body, a neck, a string tensioner, and a humidity tuner, said main body connected to a bridge, said neck connected to said shell body, said main body, or combinations thereof, said neck connected to a headstock, at least one string connected between said headstock and said bridge, said humidity tuner connected between said neck and said headstock to adjust the tension of said at least one string to compensate for humidity and/or temperature changes, said string tensioner connected to said bridge to increase and reduce tension on at least one of said strings connected between said bridge and said headstock.

A headstock adapted for use on a stringed instrument, said headstock including at least one sliding pin adapted to be connected to at least one string.

A neck adapted for use with a stringed instrument, said neck including at least one fret opening in an upper face of said neck, a fret positioned in the fret opening, and a fret control that at least partially raises and/or lowers the fret in the fret opening.