Abstract: The present invention has a harp with four arms forming a parallelogram. The four arms are pivotally connected at their respective ends. Wires are secured between the side arms of the harp with holders. The harp is securely received within a channel of the machine. As such, the harp lies in a plane that is parallel to the front of the product being sliced at all times. The harp is angularly adjustable, such that the top and bottom of the harp can selectably converge or diverge as the harp tilts. The wires remain parallel during the divergence and convergence of the top and bottom of the harp. An actuator is provided for effecting the tilting of the harp. Two vertical bars can be provided for supporting the wires and minimizing deflection of the wires along their respective lengths.