Trombone playing involves using a brass instrument known as the trombone, which has a long slide that changes the pitch of the notes. Players create sound by buzzing their lips into a mouthpiece, and the slide allows them to reach different notes by extending or shortening the length of the instrument. Trombones are commonly used in various music genres, including jazz, classical, and marching bands. The instrument is known for its rich, warm tone and versatility, making it a popular choice for both solo performances and ensemble settings.