Abstract: Slide bars for use with all types of musical instruments and in particular guitars played in either an overhand or an underhand style. One version of the slide bar consists of a tapered bar with a ring attached to the small diameter end of the bar. The slide is placed on a finger like a ring such that the slide can be engaged to contact the strings yet still permit use of all the fingers on the plucking hand. The slide can also be easily swung out of engagement with the strings and maintain the useability of the fingers on the plucking hand. The bar can be magnetic to reduce the need for players to develop exact pressure techniques. Another version of the slide consists of a hollow cylindrical tube in which magnetic or non-magnetic weight units are placed to emulate the same effect of solid tapered bars. Another version of the slide consists of a magnetized cylindrical tube that provides the advantages of controlling pressure on the strings similar to the magnetic tapered bar.

Abstract: The present invention relates to a memory tuning system for use with stringed instruments. The system includes a main activator cam having a series of adjustable projection set screws located around its circumference. Each string of the instrument is connected to a compound lever assembly and rests against the cam. The compound lever assembly consists of a tuning lever and a separator lever both pivotally mounted to a frame assembly. A fine tuning adjustment screw is tapped into the tuning lever, but not through the separator lever. In the bridge mounted version, each string is clamped into a rotatable block assembly to allow for various tensions to be applied to the string. The lever assembly is interconnected to the block assembly to control the tension of the string based on either the adjustment screw position or the set screw position.