A drumhead tuning rim system and method for securing and tuning a drumhead on a drum shell of a drum, comprising a drumhead tuning rim apparatus comprising a cable tension dial assembly configured for operably engaging a rim of the drum so as to increase or decrease tension on the rim, the rim being configured for seating over the drumhead on the drum shell, and an apparatus controller configured for operably interfacing with the drumhead tuning rim apparatus so as to selectively control the cable tension dial assembly and thereby adjust the overall pitch of the drumhead as by adjusting the tension on the rim.

An interchangeable drum slip that may be quickly installed to change the appearance of a drum and to provide protection to the drum shell. The drum slip is a rectangular piece of material that is pre-cut to precisely fit specific models of drums. Openings are cut into the material that correspond with hardware that is attached to the drum shell. A user installs the drum slip by placing the drum slip around the drum shell and securing the ends of the drum slip together. The openings in the drum slip fit over and around any hardware that is attached to the drum shell and any apertures formed in the drum shell. The ends of the drum slip are pulled together and secured with an adhesive. For some drums, the drum slip may be installed without disassembling any parts of the drum. For other drums, one or more drum heads and retaining hoops must be removed to install the drum slip. The drum slip may be transparent, and the drum slip may be made in any color and messages, designs, or information may be printed on or molded into the drum slip. Anyone can quickly and easily change drum slips to change the appearance of a drum.

A non-geared linear tuning and anchoring system for strings of a stringed musical instrument employing plug-ended strings inserted into the shaft of a string retainer and tensioned by retracting the slidable string retainer within a channel aligned with the strings.