Adjustable nut for stringed musical instrument

Apparatus for use with a musical instrument having a fretboard with a plurality of frets, a peghead and a plurality of strings facilitating independent adjustment of the spatial relationship between said frets and each of said strings or pairs thereof, comprising, in combination, support means attached to said musical instrument for aligning and positioning said strings and including a plurality of receiving chambers corresponding to the number of said strings or pairs thereof, a corresponding plurality of adjustable inserts for carrying said strings, each said chamber adapted to accommodate one of said adjustable inserts, said inserts being mounted in said chambers at a predetermined angle as to incline away from the fretboard and toward said peghead to establish a terminal departure point for each of said strings or pairs thereof, and including guide means for efecting said independent adjustment by selectively controlling the movement of each of said inserts into or out of said chambers in axial alignment with said predetermined angle.