* To create suspense. A drum roll can build excitement and suspense before a big event, such as the start of a race or the announcement of a winner.
* To add energy. A drum roll can also add energy to a performance, such as a marching band or a rock concert.
* To signal a change. A drum roll can be used to signal a change in tempo, key, or style of music.
* To simply make noise. A drum roll can also be used to make noise, for example, to get someone's attention or to celebrate a victory.
Drum rolls are a versatile technique that can be used for a variety of purposes. They are a fun and exciting way to add some flavor to your music.