This set of 12 single bridges is designed to be used with the diatonic template for the "Large Concert Monochord" (MO-46GK) to tune the melody strings of the Koto. With the help of the template, the single bridges can easily be positioned in the right place to tune in a diatonic tone sequence (scale) c-g` for it. The strings must be tuned after the new positioning.

The single bridges can also be moved freely and give the experienced player the possibility to set any tone sequence.