You explain to them that this is a one in a 16.5 million possibility and that they have turned a near impossibility into a reality. You congratulate the stunned couple for their excellent telepathic relationship and their mutual intuitive affectionate bond.
Neither you nor your participants need to have any knowledge of music to participate in these experiments. There are 3 main routines and several variations explained. There is a simple one time preparation which will last you for many performances.
The method is simple, easy, elegant and mostly self-working. You can perform these routines over a video call or on virtual shows apart from face to face situations like close up, parlor, street or stage.
[Note the PDF has a non-white background.]