Electric guitar/bass with double neck, which can be divided into two separate autonomous guitars/bass (FIG. 1).

This division is made possible thanks to the special guitar/bass body composed by two individual bodies, mate and held together by screws or clips.

The advantage of such an invention is the possibility of multiple ‘3 in 1’ use:

a) Double Neck Guitar/Bass

b) A separate instrument only with the first neck

c) A separate instrument only with the second neck

The invention pertains to improvements to stringed instrument bridges that set intonation by adjusting individual string length. Suited for guitars with pole mounts and arch top bridge bases, the invention can be adapted to bass guitars, acoustic flat top guitars and other stringed instruments. The invention uses interchangeable bridge bar and saddlerail components constructed from a variety of materials. These different materials influence tone, sustain, attack, harmonics, and “feel”. The ability to quickly interchange each string's saddlerail material independently for its tonal relationship to the bridge bar material enables the user to control the bridge's influence on the instrument's tone and response freely and in numerous ways, thereby designing the bridge to the instrument. The invention's design eliminates bothersome bridge issues including over-engineering, unwanted movement, unwanted vibration, angular string bends, obstructed tailpiece string slope, and outdated, unnecessary features. It optimizes balanced, accurate string vibration transference and increases palm muting comfort.

A removable bridge block system for a guitar having a first opening bordering a first compartment. A support structure is connected to at least a portion of the first compartment. A bridge block is retained within the first compartment of the body portion of the guitar. The bridge block has a recess configured to receive a plate of the locking mechanism. The locking mechanism has a plate including a disk having a substantially curved edge and a flat edge portion. The plate is retained within a second compartment of the body of the guitar. The plate is configured to rotate, with the force of a user's fingers or with a tool such as a screw driver, within the second compartment of the body of the guitar to orient the substantially curved edge of the plate to be retained within the recess of the bridge block.

An insert is provided for insertion in a space between a guitar neck and a guitar body to provide for adjustment of the geometric characteristics of the assembled guitar. The insert is configured to allow insertion of the insert body into the space without dismounting the guitar neck from the body. Using scanning of the guitar neck and guitar body mounting points, an exterior surface configuration of the insert can be calculated to yield the desired geometric characteristics.

An electric stringed musical instrument (e.g., guitar) system includes an acoustics system and an electronics system (module). The electronics system includes a base shaped to slidably engage the slot in the acoustics system. The module is held in place by respective sets of magnets in the acoustics system and the electronics system. The aggregate magnetic force near a bottom edge of the electronics system are stronger than the aggregate magnetic force near a top edge of the electronics system to ensure alignment of the bottom edges of the acoustics system and the electronics system.

A string tensioner module for a stringed musical instrument is configured to apply a constant or near-constant tension to the musical strings of the instrument. The module is divided into a plurality of string tensioners, one string tensioner for each musical string. Each string tensioner employs a primary spring that apply the primary force coaxial with the string. Each string tensioner also employs a secondary spring that applies a secondary force in a direction crossing the axis of the string, and thus applying an axial force component that changes as the angle of the secondary spring changes. The primary and secondary springs are selected so that the change in the axial force component of the secondary spring as the string changes in length approximates the change in force applied by the primary spring so that the axial force applied to the string remains generally constant even as the string changes in length.

A power system on an electric guitar may include a cover plate covering a standard cavity in the electric guitar. A rechargeable power source may be contained within the standard cavity and may not extend beyond an external surface of the cover plate. Other instruments or configurations may be used.

An apparatus for covering a musical instrument such as a guitar. The system comprises a back section and a front section with each of the back and front sections being affixed along a lateral edge to a side section. The cover is formed with an interior area into which the musical instrument is inserted. The musical instrument is protected from damage in the event the instrument is mishandled, dropped or knocked into another object. Cut-outs in the sections provide access to the components of the instrument for a musician to access such components while playing the instrument with the cover system in place.

An adjustable guitar effects pedalboard for anchoring guitar effects pedals. More specifically, a pedalboard having at least two telescoping sections, wherein the pedalboard is configured to allow users to adjust the width of the pedalboard to fit their needs. The pedalboard can have an upper level and a lower, telescoping level, and the upper level and the lower, telescoping level may be curved and further contain a plurality of holes on which users can use cable ties to anchor their guitar effects pedals. The plurality of holes in each of the at least two telescoping sections may align with each other in various positions of expansion and contraction.

Apparatus and methods for securing a string to an acoustic, stringed instrument are disclosed. Example apparatus include string anchors secured to a bridge of the stringed instrument. The apparatus provide components enabling selective tensioning of the string. A seat arrangement provided by string anchors receives an anchor end of string and the string passes from the seat arrangement through a base arrangement and towards a headstock of the acoustic instrument.