The instrument commonly used in marching bands that is a brass wind instrument is the trumpet. The trumpet, characterized by its high pitch and bright sound, typically has three valves that allow players to change notes by altering the length of the instrument's tubing. It is often seen at the forefront of marching bands and orchestras, playing melodies and fanfares. The trumpet's versatility makes it a prominent choice in various music genres, including jazz, classical, and pop. Its historical significance dates back centuries, evolving from ancient signaling instruments to the modern brass instrument we know today.