TREMOLO STOP TUNER is integrated into the spring block portion of a traditional fulcrum tremolo, and moveable therewith about the tremolo pivot axis, comprising an adjustment device to adjust the tension of the traditional tremolo springs with the capacity to stop or block the tremolo at the equilibrium point or initial position. One embodiment includes the option to configure the novel Tremolo Stop Tuner elements as either a Global Tuner or a Stop Tuner and includes an optional setscrew for improving coupling.