As in math or as in a bank world?
Answer:
A chordophone is a musical instrument that makes sound by way of a vibrating string or strings stretched between two points. It is one of the four main divisions of instruments in the original Hornbostel-Sachs scheme of musical instrument classification. So the answer is the Banjo.
Explanation:
I believe it’s chamber music
It's the first one, a vanishing road to show perspective because you can see the lines of the fence seem to go one forever into the distance.