A string-locking tailpiece for fixed bridge musical instrument which allows for quick string changes. The device eliminates the conventional 3 wraps around the tuning peg. Tuning is stable because the ball end cannot slip thru the tuning peg hole. As well, it also drastically reduces the time necessary for restringing. The tailpiece receives a free end of the string after it has been strung through the tuning pegs and is clamped by a set screw within the tailpiece.