Tom-toms are a type of drum that originated in Africa and are commonly used in various musical traditions around the world. They are typically made from a hollowed-out piece of wood or a cylindrical shell, covered with animal skin or synthetic material on one or both ends. Tom-toms produce a deep, resonant sound and are often played in sets, with different sizes creating varying pitches. In modern music, tom-toms are a key component of drum kits, which include other percussion instruments like snare drums and cymbals. They are used in many genres, including rock, jazz, and pop, providing rhythm and enhancing the overall sound of a performance.