Final answer:
The FFA band first performed in the year 1947 during the National FFA Convention.
Step-by-step explanation:
The FFA band, also known as the National FFA Organization band, first performed in 1947. The band is comprised of students from across the United States who are members of the FFA, which stands for Future Farmers of America. The National FFA Organization is an American 501(c)(3) youth organization, specifically a career and technical student organization, based on middle and high school classes that promote and support agricultural education. The FFA band's inaugural performance was at the National FFA Convention, an event that gathers members annually to celebrate the achievements of the organization and its members. The performance of the FFA band is one of the highlights of these conventions, showcasing the musical talents of its members alongside their agricultural knowledge.