A trumpet is a brass musical instrument known for its bright, powerful sound. It has a long, slender shape and is played by blowing air through closed lips, which creates vibrations. The player can change the pitch by pressing valves, which alter the length of the instrument's tubing. The trumpet is commonly used in various music genres, including classical, jazz, and marching bands. The history of the trumpet dates back thousands of years, with early versions made from materials like wood and animal horns. Today, it is often associated with famous musicians like Louis Armstrong and is a key instrument in orchestras and brass ensembles.