The Stabilizer Tuner adjustably supports a formed spring or a pre-loaded coil spring element operable to hold a variable force of tension to enforce initial position. The Tremolo Stabilizer includes a thumbwheel arrangement to variably adjust the position of an independent stabilizer arrangement. Tremolo Spring Tuner includes a pre-loaded coil spring element or formed flat spring operable to exert a first variable force of tension to contact the body with the capacity to variably support the pivoting of tremolo under the variable force of the string tension; the first force of tension is essentially equal to the force of tension provided by the strings to establish the fulcrum tremolo at initial position.

HEADPIECE TUNER is integrated into the nut arrangement of a traditional headless musical instrument featuring lever-based individual string clamps, a removable nut, a truss rod adjustment feature and multi-function cross bar handle. A Magnetic Tuner comprising at least one of two magnetic elements secured to a tremolo, in fulcrum tremolos, moveable therewith about the tremolo pivot axis, in a mechanism operable to provide a first force of tension comprising the traditional tremolo coil spring biasing element and/or, in the case of coil spring integrated tremolo stabilizers, provide a second force of tension to enforce the tremolo at the equilibrium point or initial position.

HEADPIECE TUNER is integrated into the nut arrangement of a traditional headless musical instrument featuring lever-based individual string clamps, a removable nut, a truss rod adjustment feature and multi-function cross bar handle. A Magnetic Tuner comprising at least one of two magnetic elements secured to a tremolo, in fulcrum tremolos, moveable therewith about the tremolo pivot axis, in a mechanism operable to provide a first force of tension comprising the traditional tremolo coil spring biasing element and/or, in the case of coil spring integrated tremolo stabilizers, provide a second force of tension to enforce the tremolo at the equilibrium point or initial position.

A tremolo device for static retention of a plurality of musical instrument strings in a stringed instrument. The tremolo device has a body with an upper surface, a neck portion, and a plurality of strings anchored at a first end of the neck and extending over at least a portion and secured to the tremolo device at the other end of the neck portion and the body and possesses an inertia block mechanism with substantially solid construction disposed to receive and securely retain a plurality of raw instrument strings without removal of a ball end from each string. The inertia block has an upper portion, a lower portion, and a plurality of internal, longitudinally displaced, cylindrically shaped, string retaining chambers designed to pass through an entirety of the block mechanism. The string retaining chambers have an upper and lower portion corresponding with the upper and lower portions of the block.

The present invention comprises a device and process designed to accelerate the maturation of stringed musical instruments, composed of but not limited to a broad spectrum audio generator coupled with one or more fasteners via one or more armatures dimensioned to allow easy installation, secure attachment, and easy uninstallation from the stringed musical instrument.

The present invention comprises a device and process designed to accelerate the maturation of stringed musical instruments, composed of but not limited to a broad spectrum audio generator coupled with one or more fasteners via one or more armatures dimensioned to allow easy installation, secure attachment, and easy uninstallation from the stringed musical instrument.

A tremolo bridge mechanism enables pitch adjustment of strings with both ends of the string rigidly attached to the stringed instrument. A pitch adjustment feature incorporates a deflection arm that is coupled with an actuating rod that pivots about a rotational axis as controlled by the tremolo lever. The pitch adjustment features can be configured to enable normal tremolo pitch adjustment or an opposite pitch change for a given motion of the tremolo lever. In a first embodiment, linkages between the actuating rod and deflection arm can be modified to provide variation in the pitch affect. In another embodiment, a spring array can be oriented in two different directions to provide variation in pitch effect for each individual string. In addition, a pitch adjustment feature may be removed, or a string can be routed around the deflection arm, to prevent pitch change with tremolo lever action.

Electroacoustic bouzouki with perforated vessel, for exercise as well as for concerts having a neck (1) which reaches until tailpiece (2), head (3), tuning keys for fastening strings (4), electromagnet (5) and bridge (6) on the front part (7) over which the strings pass (4), preamplifier (9) and amplifier (10) in its body, output (12), electric signal and battery (16), bearing, a rear part called vessel (13). The vessel carries on its surface at least one user-defined opening of any shape and is mounted on the front part (7) of the body by gluing or screwing. The best use of the electroacoustic bouzouki with perforated vessel takes place when the number of openings ranges from 2 to 6.

Systems and methods are provided performing autonomous tuning of a stringed instrument. Images of the stringed instrument are acquired by at least two cameras and processed to identify the location of a peg. A robotic peg actuator is then engaged to actuate rotation of a peg in order to rotate the peg to a tuned angular orientation, guided by feedback generated by processing acoustic signals recorded by an acoustic transducer while a string associated with the peg is agitated. In some example implementations, the cameras and peg actuator are rigidly mounted to a frame that is configured to support the stringed instrument during peg imaging and actuation. A robotic string actuator may be provided to facilitate vibration of the string during the tuning process. Multiple robotic peg actuators may be included for per-peg rotational actuation and/or a given peg actuator may be robotically translatable to actuate more than one peg.