A string bending device for stringed instruments and methods of use are claimed. The novel device permits the user to tension a string to change the pitch and tone by means of a tension arm and attached string pad. The string pad is unique in that it possesses an arcuate channel that acts as a string guide and promotes string life by gently bending the string along the arcuate channel and distributing pressure along a length of the string rather than at one point. The device may be repositioned during play so that other strings can be individually bent. The use of a plunger that may be easily disengaged and reengaged during the playing of the instrument allows the tension arm to easily be repositioned by sliding the tension arm along a rail system. Adjustable tension arm stops permit the user to predetermine the maximum tension that can be applied to each string.