This is probably a joke but I'll answer anyway
By 'cheeks' they mean buttocks so by "making them clap" is referring to them being so big/thick that they clap or make noise when you walk or move around or something.
I probably got played lol but whatever
For title as a brick wall
Answer:
they are similair because they made similair sounds but different because we now use electronic instruments such as autotune and keyboards whilst medieval instruments were made out of random woods
Answer:
same to you XD XD........
Answer:
What if I DON'T help you find this mysterious person?
