Abstract: 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over-engineering, unwanted movement, unwanted vibration, angular string bends, obstructed tailpiece string slope, and outdated, unnecessary features.