The drum is one of the earliest musical instruments, so if you dream about a drum, it can be a message that you need to use a more basic method of communication.
You may have been making an issue needlessly complicated, so that people who might be able to help you don’t understand what you want or need. Your dream is telling you that you should be more direct.
If you dream that you hear a drum, it can mean that you are becoming more aware of the rhythms of your life.
Music is often associated with religious rituals, so hearing the beating of a drum in your dream can mean that you want to get closer to your religious or spiritual roots.
If you hear a drum playing the same rhythm over and over in your dream, it can mean that you are repeating the same mistake again and again and you need to learn from your experience.