Why did he say "resident" here? What does it mean?
Native speaker’s answer
Rebecca
We usually think of "resident" in the formal sense: a person who lives in a specific place. However, it is also used to describe a person with a special skill or quality within a group of people or organization. In this case, "resident musician" refers to the person in the group with the most outstanding musical skills. Ex: Stacey is our company's resident comedian. Ex: John is the resident expert on epidemiology in our department.