A pitch adjustment device for selectively adjusting the pitch of the string(s) of a stringed musical instrument. Each string of the instrument is attached to a respective pitch adjustment device. Each pitch adjustment device comprises a pivotable string puller wherein pivoting of the string puller adjusts the pitch on the string. The string puller is pivotably mounted on a puller pivot and has a string support surface upon which the string rests, wherein pivoting of the string puller about an axis adjusts the pitch on the string. A pivoting link is pivotably coupled to the string puller. A plurality of pull rods and levers are operably coupled to the pivoting link and actuators are coupled to the pull rods for causing the pivoting link to pivot thereby causing the string puller to pivot and adjust the pitch of the string.