A haptic musical instrument is an electronic musical instrument that provides the musician not only with audio feedback but also with force feedback. By programming feedback controllers to emulate the laws of physics, many haptic musical instruments have been previously designed thatmimic real acoustic musical instruments. The controllerprograms have been implemented using finite difference and(approximate) hybrid digital waveguide models. We presenta novel method for constructing haptic musical instrumentsin which a haptic device is directly interfaced with a conventional digital waveguide model by way of a junction element, improving the quality of the musician’s interactionwith the virtual instrument. We introduce both the explicitdigital waveguide control junction and the implicit digitalwaveguide control junction.