The hybrid drum rudiment is not a standard drum rudiment. Being that it is not a NARD (National Association of Rudimental Drummers) drum rudiment or a PAS drum Rudiment (Percussive Arts Society); it is a hybrid drum rudiment, which is a rudiment that is not as common, yet extremely interesting to learn. They are typically two or more rudiments that have been smooshed together to make something new. When they are smooshed together, they change into something else. Kind of like when the letter "T" and the letter "H" come together, they make a new sound "TH". When they are played separate, they sound different compared to when they are smooshed together. They are rudiments that many drummers want to learn how to play, and will dramatically improve a players performing skills, because it will help develop a drummers hands, by exercising muscles in the hands and wrists. Watch a video by D Mark Agostinelli, the author of the best seller, "The Drum Rudiment Bible" on how to play some of these hybrid drum rudiments.