What is a rapid repetition of a note on a percussion instrument called?

The rapid repetition of a note on a percussion instrument is referred to as a "roll." This technique involves striking a drum or percussion instrument quickly and frequently, creating a sustained sound. It is often used to build tension or excitement within a piece of music, enhancing the overall dynamic and texture.

In contrast, other terms represent different techniques or concepts: "beat" generally refers to the basic rhythmic unit or pulse of music, "flam" describes a sticking technique involving two notes played in quick succession to create a specific sound effect, and "rimshot" refers to hitting the rim and head of a drum simultaneously to produce a sharp, distinct sound. Each of these has its own unique application in percussion playing, differentiating them from the concept of a roll.