Answer:
violin
Explanation:
Violins are never associated with the medieval period
A model is a three-dimensional of a person/thing or of a proposed structure.
A mock up is a model or replica of a machine or structure, used for instructional or experimental purposes.
A prototype is a first or preliminary version of a device or vehicle from which other forms are developed.
Are you wanting to know the pitch below F#? if so that would be F.