The guitar is used worldwide. It is one of the most popular music instruments because it is not expensive, not heavy and partable.
People can joy singing with a guitar at the beach, in the camp or on the bus while travelling. To play guitar is not hard and can play
a wide variety of musical genres. So the guitar is common found in ordinary families.
If you build your family tree and connect it to your relatives' family trees like fitting pieces of jigsaw together,
you will get a perfect big family tree which you and your relatives can share to get to know one another although they live in different cities or different countries
because the family tree explains clearly who is who.