The timpani and snare drum both have a drumhead, which is the vibrating membrane that produces sound when struck. The drumhead is stretched over a shell or frame and is typically made of animal skin or a synthetic material. The timpani, also known as kettledrums, are a type of orchestral percussion instrument that consists of a set of tuned drums. The snare drum is a cylindrical drum that is used in a variety of musical genres, including marching bands, jazz, and rock music. Both the timpani and snare drum are played by striking the drumhead with a mallet or stick.