pajautā! -

A rudiment is one of a set of basic patterns used in rudimental drumming. These patterns form the basic building blocks or "vocabulary" of drumming, and can be combined in a more-or-less infinite variety of ways to create drumming music.

There have been many attempts to formalise a standard list of snare drum rudiments. The National Association of Rudimental Drummers (NARD), an organization established to promote rudimental drumming, put forward a list of 13 "essential" rudiments, and later a second set of thirteen to form the original 26. Finally, the Percussive Arts Society (PAS) reorganized the first 26 and added another 14 to form the current "40 international drum rudiments".

[http://www.answers.com/topic/rudiment]

Absinth jau aprakstīja kas ir rudimenti - ja nu gadījumā gribās vēl arī zināt kā tos spēlēt - šeotan būs pāris video. http://www.vicfirth.com/education/rudiments.html
Daudzi uzskata, ka tas ir jebkura bundzinieka pamatu pamats, bet nu... jau senie grieķu polišu iedzīvotāji zināja, ka vairākums neko nesajēdz :)