Patent ID: 8373051

Claim:
A system for adding one string ( 5 ) to a stringed instrument ( 1 ), comprising one or more first fixing members ( 36 ; 39 ) intended for co-action with the saddle of the stringed instrument for the purpose of releasable attachment of a first outer end of the string, and an additional tuning machine ( 4 ) intended for the purpose of attaching the second outer end of the string and tuning thereof, a second fixing member ( 2 ) intended for releasable co-action with the head ( 3 ) of the stringed instrument for the purpose of fixing the additional tuning machine, wherein the second fixing member comprises a clamping member ( 2 ) which can be clamped onto the head ( 3 ) of the stringed instrument ( 1 ) and is provided with the additional tuning machine ( 4 ) or with an opening ( 17 ) in which the additional tuning machine can be attached, wherein the clamping member ( 2 ) consist of a part ( 15 ) of U-shaped cross-section, which can be pushed around head ( 3 ) of stringed instrument ( 1 ), and a mounting plate ( 16 ) on which the tuning machine ( 4 ) can be mounted, and wherein part ( 15 ) of U-shaped cross section comprises a chamber ( 18 ) provided with a pressing plate ( 19 ) and a pressing screw which can press the pressing plate ( 21 ) out of the chamber.