The triple-stroke roll, which is also known as “threes,” is yet another crucial rudiment. Once you can play this rudiment well, you’ll be armed with the ability to throw in isolated triple beats anywhere around the drumset.
Not many drummers play a complete two-handed triple-stroke roll on the kit. But triple strokes played by individual hands are pretty standard vocabulary. (For that matter, each hand actually plays a triple beat within a single-stroke sextuplet.)