This system allows the player to select any combination of drones and chanterelles quickly and easily allowing mid performance string addition/removal. A further advantage is that it is not required to move the drone strings across the bridge for disconnection so avoiding excess wear and the tendency for them to lose tuning. It also allows any shims to remain undisturbed. The instrument played here has drones of D &d, chanterelles of d, d',d" and trompette at d'. A further " mouche" drone is at a but not used on this recording.