A brass ensemble is a musical group primarily composed of brass instruments, such as trumpets, trombones, French horns, and tubas. These ensembles can vary in size, ranging from small quartets to larger groups, and they often perform a variety of music styles, including classical, jazz, and contemporary pieces. Brass ensembles are known for their powerful and bright sound, which is produced by buzzing lips into the instrument's mouthpiece. They often perform in concert halls, schools, and community events, showcasing the unique timbres and harmonies that brass instruments can create together.