APPARATUS FOR STRINGED MUSICAL INSTRUMENTS

摘要

The strings of stringed musical instruments are changed in length to vary their tension through a multiple musical note range for each respective string. In one embodiment foot pedal movements of mechanisms are transferred to the vicinity of string ends to rotate pivot pullers which in turn controllably move respective lever arms, between adjustable stop limitations. The lever arms are secured to disc tighteners to which the string ends are secured. Lever arm movements oscillate the disc tighteners to increase and decrease the string tension to respectively raise and lower the musical pitch of the strings. In another embodiment translating pullers are used in lieu of pivot pullers to controllably move another type of lever arm.