To my knowledge the neck of a sitat is hollow and there is nothing underneathr great. To my knowledge the feets join at the sides of the neck and are suspended above the hollow space within the neck allowing for increased resonation, movement of frets, and bending strings by fretting harder. I dont know if any of this is completely accurate. I havent done much reading about the construction or use of a sita. Ive never seen one in person. I intend to buy one someday. I was curious if there was a guitar model that has a hollow neck, frets, with no fretboard behind the frets but instead a hollow chamber. Any thoughts?