Rataplan is a musical term that refers to a continuous drumming or beating sound. It can also be used as a verb, meaning to make a rhythmic sound similar to that of a drum. If you are looking for alternative words to use instead of rataplan, you might consider using terms like drumming, pounding, thumping, or beating. Or you can use words like cadence, rhythm, or tempo to describe the pattern and pace of the sound. Whatever words you choose, make sure they convey the sense of energy and motion that is associated with the sound of rataplan.