FoG is a disabling and distressing symptom strictly associated to falls. The little or no pharmacological responsiveness of FoG has led to an increasing interest in rehabilitation interventions aimed at functional recovery and autonomy. Currently, standard protocols employed for rehabilitation are based on the use of external (visual and auditory) sensory cues. However, cued strategies generate an important dependence on the environment. Teaching motor strategies without cues (i.e. action observation - AO) can be an alternative/innovative approach to rehabilitation, that matters most on appropriate allocation of attention and lightening cognitive load. One way to increase the effectiveness of AO, is the use of a multisensory learning mode (visual and auditory) to facilitate the recovery of motor gestures thanks to enhanced perceptual processes, which is known to be reduced in PD with FoG. Sonification could be an important method to enhance therapeutical effects in action observation rehabilitation process. Sonification of movements amplifies the activity of the human action observation system including subcortical structures of the motor loop.