小号 (Trumpet) is a brass musical instrument known for its bright and powerful sound. It consists of a long, coiled tube and a flared bell at the end. Players produce sound by buzzing their lips into a mouthpiece, and they can change pitch by pressing valves that alter the length of the tubing. The trumpet is commonly used in various music genres, including jazz, classical, and marching bands. It has a rich history, dating back to ancient times, and has evolved into a key instrument in orchestras and ensembles around the world.