Spring bracing system for stringed musical instruments

The Spring Bracing System invention is disclosed for optimizing the musical voice of a stringed musical instrument by improving the transfer of musical string vibration energy and adding structural support and spring quality to targeted locations on the instrument's sound board. The Spring Bracing System, comprising a spring brace frame, a tensioning system, a fulcrum lever system, sound posts and sound braces, operates as a simple machine in transferring vibration energy generated when the instrument's strings are in motion. The adjustability of the system allows the musician to customize, optimize, and improve the musical voice of the instrument to his preference. On most steel string guitars, the Spring Bracing System can be installed without modification to the instrument. It can be installed in other types of stringed musical instruments, such as classical guitars, cellos and double basses, with minor modifications.